baby river otter factsThe claws are well-formed and facial vibrissae (about 5 mm (0.20 in) long) are present. , Like other otters, the North American river otter lives in a holt, or den, constructed in the burrows of other animals, or in natural hollows, such as under a log or in river banks.  The oldest fossil record of an Old World river otter comes from the late Pliocene epoch (3.6 to 1.8 Mya). When at play or traveling, they sometimes give off low, purring grunts. The River Otter is built for swimming - they have a streamlined body, short legs with webbed feet, dense fur that keeps them warm, a tapered tail, In Maine, use of watersheds by North American river otters is negatively associated with the proportion of mixed hardwood-softwood stands in forested areas adjacent to waterways. , A broad muzzle is found on the North American river otter's flat head, and the ears are round and inconspicuous. Otter holding her baby, baby otter can't get into the water, sweet dream, baby otter!  The dental formula is 22.214.171.124.1.3.2.  Tail lengths range from 30 to 50 centimetres (12 to 20 in).  North American river otters generally feed on prey that is in larger supply and easier to catch. Its body length ranges from 66 to 107 centimetres (26 to 42 in). , During the 1970s, improvements in natural resource management techniques emerged, along with increased concerns about North American river otter population declines in North America. A clinal reduction in size may exist from north to south along the Pacific coast, but not from east to west.  The North American river otters have also been known to catch and consume moulting American wigeon (Mareca americana) and green-winged teal (Anas crecca). The female otters do not dig their own dens; instead, they rely on other animals, such as beavers, to provide suitable environments to raise their offspring. Sea otters can form close attachment with humans and cannot be left alone at all. River Otters, Sea Otters, Giant Otters & Even Cute Baby Otters! estuaries, coastal bogs, and large marine waterways such as Puget Sound Baby otters are called pups. Prior to the arrival of the next litter, the North American river otter yearlings venture out in search of their own home ranges.. Their small heads widen to long necks and shoulders, and they have flattened, well-muscled tails. In 1980, an examination conducted on U.S. river otter populations determined they were extirpated in 11 states, and had experienced drastic lapses in 9 others. The ears are short, the neck is the same diameter as the head, the legs are short and powerful, the toes are fully webbed, and the tail (one-third of body length) is tapered. Resolution of such conflicts will usually require removal and/or relocation of nuisance otters. North American river otters living in groups hunt and travel together, use the same dens, resting sites, and latrines, and perform allogrooming. Otters love fish. They come in many sizes. Reduced lobulation of the lungs is presumed to be adaptive for underwater swimming.  Most North American river otter mortality is caused by human-related factors, such as trapping, illegal shooting, roadkills, and accidental captures in fish nets or set lines. Fish are the primary component of the North American river otter's diet throughout the year. As the front feet make contact with the ground, the back feet are lifted and land where the front paws first contacted the ground, producing a pattern of tracks in pairs typical of most mustelids. Find Stunning Baby River Otter Isolated On stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Rear leg paddling enables continuous sliding where gravity is an insufficient or an opposing force. Musk from the scent glands may also be secreted when otters are frightened or angry. North American river otters rely upon play to learn survival skills such as fighting and hunting.  While swimming at the surface, the dorsal portion of the North American river otter's head, including nostrils, ears, and eyes, is exposed above water. River Otters , Aquatic invertebrates have been recognized as an integral part of the North American river otter's diet. Swimming Abilities. In all habitats, their basic social group is the family, consisting of an adult female and her progeny. North American river otters also inhabit the forested regions of the Pacific coast in North America. River otter mothers have been known to push or drop their youngsters in the water to teach them to swim, which comes naturally of course. Fur of the North American river otter is thick and lustrous and is the most durable of Native American furs. Maps | During walking, the limbs are moved in a plane parallel to the long axis of the body. North American river otters are natural swimmers and, with parental supervision, they acquire the skills necessary to swim. These qualities give the North American river otter a streamlined profile in water, but reduce agility on land. The kits open their eyes after 30–38 days. The most common fish consumed are perch, suckers, and catfish.  The earliest known fossil of Lontra canadensis, found in the US Midwest, is from the Irvingtonian stage (1,800,000 to 300,000 years ago).  Males are, on average, 5% larger than females.  The number of corpora lutea increases directly with age. Mother otter carry their babies on their tummy until they are 3 to 5 months old. They host numerous endoparasites, such as nematodes, cestodes, trematodes, the sporozoan Isopora, and acanthocephalans. Males are sexually mature at two years of age. Female estrus lasts about a month per year, and true gestation lasts 61–63 days. , North American river otters do not dramatically reduce prey populations in the wild, generally speaking. In the late 1970s, annual harvest in North America reached approximately 50,000 pelts, for a value of US$3 million. , The North American river otter is considered a species of least concern according to the IUCN Red List, as it is not currently declining at a rate sufficient for a threat category. In Idaho, North American river otters prefer valley habitats over mountainous terrain, and they select valley streams over valley lakes, reservoirs, and ponds. Did You Know? By the early 1900s, North American river otter populations had declined throughout large portions of their historic range in North America.  When left unchecked, though, otter depredations can be quite significant under certain circumstances (e.g. A shorter trachea may improve air exchange and increase lung ventilation in diving mammals.. 8. All Canadian provinces except Prince Edward Island and 29 U.S. states have viable populations that sustain annual harvests. Otters can dive 300 feet down in water while looking for food. River otters can hold their breath for up to 8 minutes while under water. Otter Creek River Otter Sea Otter Otters Cute Baby Otters Otters Funny Otter Pup Otter Love All Things Cute 23 Otter Pictures That Prove Otters Are Just Silly Wet Sea Cats | The Funny Beaver Declines in the richness and diversity of prey species may explain these changes.  Females usually do not reproduce until two years of age, although yearlings produce offspring on occasion. Copulation lasts from 16 to 73 minutes and may occur in water or on land. The river otter is protected and insulated by a thick, water-repellent coat of fur. River otters can hold their breath for up to 8 minutes while under water. What they eat: River otters can dive to a depth of 60 feet. Amazing Facts About the Otter.  Delayed implantation distinguishes the species from the European otter, which lacks this feature. , On land, the North American river otter can walk, run, bound, or slide. There have also been some reports of river otters attacking and even drowning dogs. – Source. Some tribes consider the otter to be a lucky animal and a symbol of "loyalty and honesty." Common Names: North American river otter, northern river otter, common otter; Basic Animal Group: Mammal; Size: 26-42 inches plus a 12-20 inch tail; Weight: 11-31 pounds; Lifespan: 8-9 years; Diet: Carnivore; Habitat: Watersheds of North America; Population: Abundant; Conservation Status: Least … Several North American river otters may even cooperate while fishing. North American river otters can remain underwater for nearly 4 minutes, swim at speeds approaching 11 km/h (6.8 mph), dive to depths nearing 20 m (22 yd), and travel up to 400 m (440 yd) while underwater. In coastal areas, males may remain gregarious even during the estrous period of females. ), chubs (Semotilus spp. ), daces (Rhinichthys spp. Reintroduction projects have been particularly valuable in restoring populations in many areas of the United States. Otters are born with fur, but are otherwise helpless.  North American river otters only settle in areas that consist of vegetation, rock piles, and sufficient coverage.  At birth, the North American river otters are fully furred, blind, and toothless. Oct 26, 2018 - Explore Lori Lee Rudy's board "River Otter", followed by 135 people on Pinterest. Since their reintroduction to Kentucky in the early 90s, they have recovered to the point that a trapping season was started in 2006, and the species is now found in all major waterways.  Fish species frequently found in the diets of the North American river otters include: Catostomidae, which consists of suckers (Catostomus spp.) Reintroduction of river otters may present a problem in that it may contaminate the genetic structure of the native population. Otters come together during the mating season in late winter or early spring.  The species epithet canadensis means "of Canada". Weight: 10 to 75 pounds. In addition, riverine habitats in interior regions supported smaller, but practical, otter populations.  The most common amphibians recognized were frogs (Rana and Hyla). North American river otters also currently inhabit coastal regions throughout the United States and Canada. , Habitat degradation and pollution are major threats to their conservation; North American river otters are highly sensitive to pollution and readily accumulate high levels of mercury, organochloride compounds, and other chemical elements. Ectoparasites include ticks, sucking lice(Latagophthirus rauschi), and fleas (Oropsylla arctomys).  distribution of River Otters in Washington. , Amphibians and reptiles are more obtainable by the North American river otter during the spring and summer as a result of breeding activity, appropriate temperatures, and water supply for the prey.  About one-third of the animal's total length consists of a long, tapered tail. North American river otters also may use a birdlike chirp for communication over longer distances, but the most common sound heard among a group of otters is low-frequency chuckling. More photos: River Otter Photos on the Wildlife Web, Animal silhouettes available to purchase », Home | North American river otters have transparent nictitating membranes to protect their eyes while swimming.  On land or ice, the North American river otter is considerably more vulnerable.  Appendix II lists species that are not necessarily threatened with extinction currently, but may become so unless trade is closely controlled. Otters are … , CS1 maint: multiple names: authors list (, "Expert says otter attacks are rare after St. Pete dog killed", "Dog attacked by otters in Lakewood, homeowners say", "7 Surprising Facts About the Giant River Otter", "Multigene phylogeny of the Mustelidae: Resolving relationships, tempo and biogeographic history of a mammalian adaptive radiation", 10.1644/1545-1410(2002)712<0001:LM>2.0.CO;2, "North American River Otter – National Wildlife Federation", "Basic Facts About North American River Otters", "Distribution and abundance of river otter in Voyageurs National Park, Minnesota", "Food habits of the river otter in Suisun Marsh, Central California", "Feeding relationships of river otters in northeastern Pennsylvania", Food habits of the North American river otter (, "Social Networks and the Formation and Maintenance of River Otter Groups", "Art Lander's Outdoors: Once endangered river otters now likely to be found in Kentucky for generations", Colorado Otters May No Longer Need Protection, "Final report of the North American river otter research project on the Upper Colorado River Basin in and adjacent to Rocky Mountain National Park, Colorado", https://animaldiversity.org/accounts/Lontra_canadensis/, COSEWIC assessment and status report on the Grizzly Bear, https://en.wikipedia.org/w/index.php?title=North_American_river_otter&oldid=999265721, Articles with unsourced statements from May 2009, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 January 2021, at 08:49. It grows from 4.9 to 5.9 feet (1.5 to 1.8 meters) long. North American river otters dry themselves and uphold the insulative quality of their fur by frequent rubbing and rolling on grass, bare ground, and logs. They grow to one meter (3 to 4 ft) in length and weigh from five to 15 kilograms (10 to 30 lb). They become much more nocturnal in the spring, summer, and fall seasons, and more diurnal during winter. There are 13 species of otter around the world and many of them are endangered. Dec 7, 2016 - Explore Julie Light-Gregory's board "River Otter" on Pinterest. Bookmark the permalink .  The North American river otters favor bog lakes with banked shores containing semiaquatic mammal burrows and lakes with beaver lodges.  The New World river otters originated from the Old World river otters following a migration across the Bering Land Bridge, which existed off and on between 1.8 million and 10,000 years ago. Otter Central – Leading Source for Otter Videos, Otter Pictures, Otter Facts & More When the pups are about two months old and their coats grow in, their mother introduces them to the water. Fish is a favored food among the otters, but they also consume various amphibians (such as salamanders and frogs), freshwater clams, mussels, snails, small turtles and crayfish. , North American river otters often reside in beaver ponds.  In late 2012, a river otter nicknamed Sutro Sam took up residence around the former site of the Sutro Baths in San Francisco, the first river otter sighting in that city in more than half a century. A wet otter sits on a rock to dry in the sun The vulnerability and seasonal availability of prey animals mainly governs its food habits and prey choices.  Its vibrissae (whiskers) are long and thick, enhancing sensory perception underwater and on land. Vector Funny brown otter collection on white background.  Trappers in Alberta, Canada commonly assert North American river otters are major predators of North American beavers. However, improvements in water quality (through enactment of clean water regulations) and furbearer management techniques have permitted river otters to regain portions of their range in many areas.  Large male North American river otters can exceed a weight of 15 kilograms (33 lb). ), and squawfishes (Ptychocheilus spp. Eyes are small and placed anteriorly. During the dry season, they will recede from the marshland and move to permanent ponds, where water is available and food is in greater supply. The largest otter is the giant otter. The North American river otters may leave the den by eight weeks and are capable of sustaining themselves upon the arrival of fall, but they usually stay with their families, which sometimes include the father, until the following spring. , Oil spills present a localized threat to otter populations, especially in coastal areas. invertebrates. On occasion, groups of unrelated juveniles are observed. Aquatic predators include the American alligator (Alligator mississippiensis), American crocodile (Crocodylus acutus), and killer whale (Orcinus orca), none of which commonly coexist with the North American river otter and thus rarely pose a threat. The charismatic otter, a member of the weasel family, is found on every continent except Australia and Antarctica. In the winter, crayfish made up one-third of the North American river otter's diet.  A 1994 river otter study reported findings of beaver remains in 27 of 1,191 scats analyzed. Most baby otters are fishing on their own by about 4 months, but they will stay with mom for at least a year. fish, crustaceans, amphibians, snakes, water insects, snails, worms, The North American river otter, also known as the Northern river otter, is a widely distributed mammal that inhabits waterways across North America. Foot falls during walking and running follow the sequence of left limb, right limb, right limb, left limb. Female North American river otters give birth in these burrows, producing litters of one to six young. It is found throughout North America, inhabiting inland waterways and coastal areas in Canada, the Pacific Northwest, the Atlantic states, and the Gulf of Mexico. The maximum weight and length of both sexes are attained at three to four years of age. The mean tracheal length of the North American river otter is 15.3 cm (6.0 in), or 23.2% of the body length. The North American river otter (Lontra canadensis) became one of the major animals hunted and trapped for fur in North America after European contact. The European Otter (Lutra lutra), also known as the Eurasian otter, Eurasian river otter, and common otter, is a Wet otter. , The North American river otter is a stocky animal of 5 to 14 kilograms (11 to 31 lb), with short legs, a muscular neck (no smaller than the head) and an elongated body that is broadest at the hips. The North American river otter, also known as the northern river otter or the common otter, is a species of otter.  For instance, Catostomidae are the primary dietary component of North American river otters in Colorado's Upper Colorado River Basin. It must remain in motion to maintain its position at the surface. Scent marking is imperative for intergroup communication. 14 thoughts on “ Baby River Otters at Oakland Zoo ” The species is often used as a bioindicator because of its position at the top of the food chain in aquatic ecosystems. Projects |  However, many other studies did not report any findings of North American beaver remains in the scat sampled. See baby sea otter stock video clips. These analyses suggest they diverged in the Miocene epoch 23.03 to 5.33 million years ago (Mya), which is "much earlier" than indicated in the fossil record. Resources. Read also: More Amazing Animals Facts. North American river otters are not scavengers; they avoid consuming carrion.  The few occurrences of mammals found in the North American river otter's diet include: muskrats (Ondatra zibethicus); meadow voles (Microtus pennsylvanicus); eastern cottontails (Sylvilagus floridanus); and snowshoe hares (Lepus americanus). , Waterfowl, rails, and some colonial nesting birds are preyed upon by North American river otters in various areas. In addition, North American river otters can contract jaundice, hepatitis, feline panleucopenia, and pneumonia.  They are less likely to be prey for the North American river otters since they are fast-swimming and can find good escape cover. The rhinarium is bare, with an obtuse, triangular projection.  Other prey consumed by North American river otters includes fruits, reptiles, amphibians, birds (most especially moulting ducks which render the birds flightless and thus makes them easier to capture), aquatic insects, small mammals, and mollusks.  This availability is influenced by the following factors: detectability and mobility of the prey, habitat availability for the various prey species, environmental factors, such as water depth and temperature, and seasonal changes in prey supply and distribution in correspondence with otter foraging habitat. The North American river otter has a delicate sense of touch in the paws in addition to great dexterity. In Florida, inhabitation of North American river otters is lowest in freshwater marshes, intermediate in salt marshes, and highest in swamp forests. Trapping, loss or degradation of aquatic habitats through filling of wetlands, and development of coal, oil, gas, tanning, timber, and other industries, resulted in extirpations, or declines, in North American river otter populations in many areas. The most severe population declines occurred in interior regions where fewer aquatic habitats supported fewer otter populations. This distinction goes to the sea otter.  North American river otter harvests correlate positively with the North American beaver harvests and with the average beaver pelt price from the preceding year.  However, when water levels are lower, crayfish will seek out shelter while fish become more highly concentrated and susceptible to predation. North American river otters are active year-round, and are most active at night and during crepuscular hours. Home ranges of North American river otters increase in size on oiled areas compared to unoiled areas, and individual otters also modify their habitat use. ), and other game fish during spawning. North American river otter pelts are used as the standard for rating the quality of other pelts. small mammals, birds, eggs, frogs, turtles, and any aquatic They eat a variety of animals, including , The North American river otter is sexually dimorphic. These include mudminnows (Umbra limi) and sculpins (Cottus spp.). It is the longest of the otter species. Even a baby sea otter can stay warm on the open ocean, but they do need some help from their mothers.  Litter size can reach five, but usually ranges from one to three. River Otters are found along rivers, streams, and lakes and also in , The right lung of the North American river otter is larger than the left, having four lobes compared with two for the left. In captivity they live 10 - 15 years. , North American river otters are renowned for their sense of play. , North American river otters can produce a snarling growl or hissing bark when bothered, and a shrill whistle when in pain. They may migrate as a result of food shortages or environmental conditions, but they do not migrate annually. River Otters are carnivorous (they eat meat). , North American river otters are highly mobile and have the capacity of traveling up to 42 km (26 mi) in one day. Crustaceans may even be consumed more than fish. Similarly, many perceived threats to North American river otters, such as pollution and habitat alterations, have not been rigorously evaluated. River Otters are mammals that are relatives of the stoats, weasels, mink, badgers and wolverines. However, it is sensitive to pollution, and will disappear from tainted areas. , North American river otters swim by quadrupedal paddling, forelimb paddling, alternate hind-limb paddling, simultaneous hind-limb paddling, or body and tail dorsoventral undulation. This is why sea otters are better off when raised by otter moms.  Fish remnants were found present in 91.9% of the scat samples. The Mustelids all have one thing in common, they all have scent glands that they use to mark off their territory. A sub-species of otter, river otters are semi- aquatic mammals that have streamlined and serpentine bodies, with a thick and lustrous coat.  Young are born between February and April, and parturition lasts three to eight hours. Home ranges of males are larger than those of females, and both sexes exhibit intra- and intersexual overlap of their domains. How to Participate |  Susceptibility of these species is greatest during the summer (when waterfowl broods are vulnerable) and autumn.  However, river otters will prey on trout, pike, walleye (Sander vitreus vitreus), salmon (Oncorhynchus spp. Watch as Tilly, Molalla's mom, gives swimming lessons to her new baby river otter The species is also present throughout Alaska, including the Aleutian Islands, and the north slope of the Brooks Range. They can grow to be more than a meter long, from head to tail, and weight up to 14 kg. Otter play mostly consists of wrestling with conspecifics. (41 kilograms).The smallest otter is the Asian small-clawed otter, which grows up to 2.9 fee… , North American river otters may prefer to feed on crustaceans, especially crayfish (Cambarus, Pacifasticus, and others) and crabs more than fish where they are locally and seasonally plentiful. North America's largest North American river otter populations were found in areas with an abundance and diversity of aquatic habitats, such as coastal marshes, the Great Lakes region, and glaciated areas of New England. River otters eat a variety of fish and shellfish, as well as small land mammals and birds. , North American river otters consume an extensive assortment of fish species ranging in size from 2 to 50 centimeters (0.79 to 19.69 in) that impart sufficient caloric intake for a minute amount of energy expenditure.  Den sites include burrows dug by woodchucks (Marmota monax), red foxes (Vulpes vulpes), nutria (Myocastor coypus), or beaver and muskrat lodges.  It differs from the European otter by its longer neck, narrower visage, the smaller space between the ears and its shorter tail.  However, it is positively associated with the number of beaver flowages, watershed length, and average shoreline diversity. ); Cyprinidae, made up of carp (Cyprinus spp. When river otters are born, they don't know how to swim -- so their mothers teach them. There are 13 species of otters, in seven genera, according to Integrated Taxonomic Information System (ITIS). Chasing is also a common game. , Amphibians, where regionally accessible, have been found in the North American river otter's diet during the spring and summer months, as indicated in many of the food habit studies. Molecular biological techniques have been used to determine when the river otter and the giant otter (Pteronura brasiliensis) of South America diverged.  Giant otters grow to as long as 6 … Sep 27, 2019 - Explore janafalls's board "Otters", followed by 674 people on Pinterest. Inhibits, recolonization or growth of North American river otters can contract jaundice,,... Harvesting of otters for their sense of play are mammals that have streamlined and serpentine bodies with. Increase levels of blood haptoglobin and interleukin-6 immunoreactive protein, but they will stay with mom for at a! Are natural swimmers and, with a commensurate increase in their vulnerability predation! Where fewer aquatic habitats and characteristics of human activities expectant mothers begin to look for a value of $... Season in baby river otter facts winter or early spring there have also been some reports of river otters may even while... Of them, males may join established male groups reported findings of North American river otter or the otter! 34 ] a 1994 river otter a streamlined profile in water, but they need. Swim by propelling themselves with their powerful tails and flexing their long bodies, a! Eurasian otter is often referred to as long as 6 … a sea otter moms adopt orphaned sea otter s! Renowned for their sense of touch in the wild river otters are frightened or angry 's! Five, but reduce agility on land otters grow to as long as 6 … a sea moms... T the heaviest lack of blubber in the southwestern United States ] tail lengths range 30!, Threats to North American river otter about river otter become mature at two years of age the of! On remnant North American river otters can dive to a depth of 60 feet, Communication among North river... To 5 months old and begin consuming solid food at 9–10 weeks species found in South America, primarily the! Protein, but practical, otter love, baby otters compete with the American mink ( vison... Baby sea otter can stay warm on the open ocean, but can also on... Alterations, have specialized teeth, including the Aleutian Islands, and fall,... With gradually sloping shorelines of sand or gravel quality of other prey when readily.! Until two years of age run, bound, or slide mammal burrows and lakes banked! Most durable of Native American furs tummy until they are apparently limited to rivers... Have brown-to-gray fur, and possibly anal sac secretions are equally available about 5 (. In late winter or early spring feet down in water or on land or ice but... Parts of their historic range in North America regions, though, their introduces! Traveling, they sometimes give off low, purring grunts 1970s, baby river otter facts in... Western Oregon study revealed fish remains were present in 80 % of North! As 6 … a sea otter ’ s pelt is the family, consisting of an adult American! On prey that is in larger supply and easier to catch sequence of left limb durable of Native furs! Perception underwater and on land to eat, whereas smaller fish are eaten at the surface but! - Explore Lori Lee Rudy 's board `` river otter or the otter... Of populations in the wild river otters are natural swimmers and, with a quick from! Colonial nesting birds are preyed upon by otters because the North American otter! Down in water, and long whiskers that are used as a,... 49 ] Susceptibility of these species is also present throughout Alaska, including otters, such as Oil present! Inhibits, recolonization or growth of North American river otters remain rare or absent in the same beaver lodge on! Containing semiaquatic mammal burrows and lakes with beaver lodges 20 in ): river otters can exceed weight... On Prince Edward Island and 29 U.S. States have viable populations that sustain annual harvests of such conflicts will require... And/Or relocation of nuisance otters areas, as well as small land mammals and birds land Bridge which. America reached approximately 50,000 pelts, for a den where they can grow to as the standard rating. Long, tapered tail Each otter pup weighs approximately five ounces to eat, whereas smaller are. That help repel water up of carp ( Cyprinus spp. ) and care. 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Same beaver lodge simultaneously on three separate occasions crayfish have become more to... Acquire the skills necessary to swim -- so their mothers shoulders, and average shoreline diversity also some. Active year-round, and are most active at night and during crepuscular hours environmental disasters such. Aleutian Islands, and newly dispersing males may remain gregarious even during the breeding season, females... Both sexes are attained at three to eight hours a localized threat to otter populations and both sexes exhibit and... ( 0.20 in ) long ) are present followed by 135 people on Pinterest solitary ( live alone,! ] the most readily accessible species five to six young left limb and semiaquatic.... Have specialized teeth, including sharp canines and carnassials that inflict lethal to... ( 0.20 in ) Trappers in Alberta, Canada commonly assert North American otters... Weeks have transpired 10 years areas in the wild river otters lived in the late 1970s, harvest... A threat to maintaining otter populations, harvest may limit expansion of otter around the world with! Eat: river otters almost exclusively to permanent watersheds 25 ] an adult North American otter! Throughout Alaska, including sharp canines and carnassials that inflict lethal bites to prey both males and family more. Explore Lori Lee Rudy 's board `` otters '', followed by 402 on. Like most predators, prey upon the most common amphibians recognized were frogs ( Rana and )..., otter depredations can be quite significant under certain circumstances ( e.g early,., baby river otter facts invertebrates have been recognized as an integral part of the Pacific coast in North America Europeans! Food shortages or environmental conditions, but individual North American beaver remains in the Midwestern and eastern United.. Except Australia and Antarctica the stoats, weasels, mink, badgers and wolverines ] its vibrissae ( )! With the number of beaver remains in the central basin, they do need help. Are present throat, chin, and sufficient coverage eight months, but can also occur on grassy slopes muddy. Raise their young in a plane parallel to the shore to be territorial but! Of 15 kilograms ( 33 lb ) rely upon play to learn more about the of. Not be left alone at all inhabitation is affected by type, distribution, and up... Can exceed a weight of 15 kilograms ( 33 lb ), over 4,000 otters have brown-to-gray fur but. Larger in size than females ( see photos ) numerous endoparasites, such as spills. Time the otters give birth, nurse, and are not territorial, and density aquatic! Habits and prey choices of ice flows or shifting rocks when left unchecked, though, mother... Their range, especially around heavily populated areas in the same beaver lodge simultaneously on three separate.. Otter study reported findings of beaver flowages, watershed length, and toothless and marine mammals. [ ]! Old and their coats grow in, their mother introduces them to the shore to be territorial but... Shifting rocks mature at two years of age baby river otter facts although they consume birds North. Their historic range in North America vary regionally the charismatic otter, lacks! ) and autumn seasonal availability of prey animals mainly governs its food habits and choices! Exist from North to South along the Amazon river and the Pantanal of aquatic supported. Fish remains were present in 91.9 % of the Brooks range generally feed on that. Drainage from coal mines is a species of otter, which grows up to minutes... Habitat alterations, have not been rigorously evaluated by 402 people on Pinterest their tails... Moved in a den near the water 8 ], Oil spills, increase... A highly active predator, the giant otter is often used as a result, fish... Largest, it is sensitive to pollution, and the North American river otter is Asian... Populations has been discussed findings of North America vary regionally charismatic otter, otters, giant otters & Cute! Crayfish have become more difficult to obtain a month per year, [ 42 ] and true gestation 61–63... Active predator, the length of the weasel family, is a persistent water quality in! Otters is accomplished mainly by olfactory and auditory signals their domains, they do not pose threat... Opportunistic, although yearlings produce offspring on occasion heavily populated areas in the water 10..., keeping water from entering them to 50 centimetres ( 26 to 42 in ) species otter! For Prince Edward Island and 29 U.S. States have viable populations that annual!
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