habitat. They can grow to be more than a meter long, from head to tail, and weight up to 14 kg. How Long is the School Day in Homeschool Programs? You will notice that they have extremely long whiskers as well. The giant otter or giant river otter (Pteronura brasiliensis) is a South American carnivorous mammal. When underwater, they can close their nostrils and small ears. Alternative Teacher Certification in New York, Tech and Engineering - Questions & Answers, Health and Medicine - Questions & Answers, Working Scholars® Bringing Tuition-Free College to the Community. A river otter can grow three to four feet (0.9 to 1.2 meters) long including its tail and weigh between 11 and 30 pounds (5 to 14 kilograms). Southern river otters have the smallest range of any otter, and can only be found in southern and central Chile and southern Argentina. These mammals are primarily nocturnal, becoming active at night as they forage for crayfish and fish. Is it Good to Listen to Music While Studying? The river otters' fur and layer of fat underneath their fur assists in slowing heat loss while swimming. https://www.chesapeakebay.net/discover/field-guide/entry/river_otter Take the southern river otter (Lontra provocax), for example. This ensures that a female … The River Otter's Adaptation to the Environment. However, the population is declining as their habitat is destroyed and vegetation cleared for human construction projects, such as dredging new canals. Concepts. The rare Southern river otter lives in freshwater systems with abundant riparian vegetation. It sometimes is considered a subspecies of Lontra canadensis. River otters have waterproof, velvety coats that act as insulation. Fast Facts. River otters are found throughout Florida, except for the Keys. While diving, river otters can slow down their heart rate to sustain oxygen. The first is that they have incredibly powerful little legs. This species also lives in freshwater and can be found along lakes, streams, ponds, and of course, rivers. River otter observations (n = 170) reported by season in South Dakota from 1979 through 2011. According to SeaWorld, diving river otters are able to hold their breath for up to 8 minutes before they need to resurface. This species can live in either freshwater or marine(saltwater) environments. The sea otter’s hind feet are webbed and … After all, rivers are typically freshwater! Otters den in burrows found on the banks of waterbodies, sometimes making use of abandoned beaver burrows rather than … A male river otter appears to approach females indiscriminately until it finds one that is receptive. The marine otters mostly live along the southern tip of this area. What this means is that while a male and a female might have overlapping home ranges, a male and another male probably would not. River Otter Adaptations. 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Finally, otters have a double layer of fur that helps them in their semi-aquatic life. This is to keep the otter from getting wet when it swims. Interestingly, their front feet are only partly webbed. Specifically, they live in central and southern Chile and southern Argentina. | {{course.flashcardSetCount}} A male approaches a female and attempts to embrace her with his forelegs or rub and sniff her body. © copyright 2003-2021 Study.com. Wiki User Answered 2011-06-04 08:45:16. the otters … These semiaquatic mammals also developed fur on the bottoms of their feet, which provides them with warmth and better traction. Empower Her. The southern river otter (Lontra provocax) is a species of otter that lives in Chile and Argentina. They feature hair that is very dense. All of these adaptations combine to With such a small geographic range, it is easy to see that any habitat loss would be devastating for these creatures. Mating takes place in early spring, but embryos remain dormant and free floating in the uterus for 8-9 months, before attaching and developing. Asked by Wiki User. Otters. This helps it with move in the water. The otters are very agile in the water. Otter Breeding and Reproduction. IUCN Status The southern river otter is endangered because of habitat loss and poaching If the Otter completely went extinct It hunts mainly fish, but also forages for crabs, molluscs and birds. This enables them to more easily grab prey. An observation can be an individual animal or a group of animals. flashcard set{{course.flashcardSetCoun > 1 ? The tail makes up about a … Another issue is that these otters do not reproduce quickly. Some of these predators include coyotes, bobcats, birds, and humans. PART OF WILD SKY MEDIA | FAMILY & PARENTING, SeaWorld: Otters - Adaptations for an Aquatic Environment, Vermont Fish and Wildlife Department: River Otter, Children's Zoo at Celebration Square: North American River Otter, University of Michigan: North American River Otter. Students will be able to: • List at least 3 otter body parts that make this animal well-adapted to its aquatic. Reduced range and population size, vulnerability to oil spills, and oil spill risk from coastal tanker traffic were the primary reasons for listing. Males are larger in size than females (see photos). Marine-based southern river otters live along the coastline. Their playful snow and mud sliding, tail chasing, water play, and snow burrowing activities also serve other purposes—they help strengthen social bonds and let young otters practice hunting techniques. How Does a Platypus's Fur Help Underwater? It is the longest member of the weasel family, Mustelidae, a globally successful group of predators, reaching up to 1.7 metres (5.6 ft).Atypical of mustelids, the giant otter is a social species, with family groups typically supporting three to eight members. The average home range of a single otter covers about seven miles. If she is receptive, the two roll and frolic; if not, she will push him away. All of these adaptations help make the southern river otter perfectly suited for either marine or freshwater environments. It is found in inland lakes and close to the rocky coastal habitats of Argentina and Chile, never far from a source of freshwater. Southern river otters have the smallest geographic range of any otter species in the world. Only about one percent survive to adulthood, and female otters have only one or two babies every year. The inner, softer layer traps air and keeps them warm. © 2021 WILD SKY MEDIA. These features enable river otters to swim up to 9 miles per hour. Their webbed feet and tail will give them propulsion, and they can move their bodies to help them move through the water as well. River otters are able to travel on land at speeds of up to 29 miles per hour, according to SeaWorld. When you hear the name 'river otter,' you may assume that the species lives in freshwater. To unlock this lesson you must be a Study.com Member. Playful and beloved, river otters are adapted for land and water with their short legs, webbed toes and strong, flattened tails. Adult male river otters average 4 feet in length, including the tail, and weigh 20 to 28 pounds. These are very long animals with large sized heads. Top Answer. As a result, the IUCN listed them as endangered starting in 2000. What are the river otters some adaptations? What Kind of Special Skills Does the Polar Bear Have? This is important because river otters lose heat quickly in water, so they must constantly burn energy to replace lost heat. They must be to get away from predators. Their back feet are fully webbed, which helps them move quickly in the water. Although called a "river otter", it inhabits both marine and freshwater environments. These propel them through the water at high speeds to help them hunt. Despite their name, southern river otters (Lontra provocax) don't only live in rivers. Lauren has taught intermediate reading in an English Language Institute, and she has her Master's degree in Linguistics. Semi-Aquatic Mammals. In the wild, river otters live up to eight or nine years. These adorable animals are adapted to living in and near water. When on land, otters occasionally fall prey to wolves and coyotes, but their principal enemies are humans. To function in a dual environment, river otters have evolved several important adaptations that help them to thrive. They have a long, slender, and sleek body with a tapered tail. An observation is based on a sighting of a live animal, incidental trapping catch, otter sign, or road kills. River otters can be found from 45° to 66° north latitude and from 120° to 139° west longitude. Their ability to travel quickly on land is essential for escaping predators, such as alligators and coyotes, who might consider an otter a tasty snack. About River Otters River Otter. When river otters are not playing or swimming in water in search of food, they spend a lot of time on land grooming and resting. Animals have body parts suited for their lifestyle and habitat. When you hear the name 'river otter,' you may assume that the species lives in freshwater. This is the only truly marine otter along the west and southwest coasts of South America, although there are southern river otters (Lontra provocax) along some parts of the coast and marine otters do enter rivers on occasion. Long whiskers help them to detect vibrations in murky waters and sensitive forepaws, with retractable claws, help them to groom, locate and capture prey underwater, and use tools. They have a coat that is about 2.5 inches thick. The details of their movements aren't well-known, but it is thought that there is not much territory overlap between same-sex otters. Wary in the wild, they are, nonetheless, sociable, docile, playful animals and easily domesticated. The Giant River Otter from the Amazon lives in packs, as do North American river otters, female Southern river otters, (males are solitary). In any of these habitat types, they prefer well-sheltered areas with rocky caves or dense vegetation. Earn Transferable Credit & Get your Degree. Southern River Otter: Habitat, Population & Adaptations, Create an account to start this course today. The southern river otter is listed as endangered, due to illegal hunting, water pollution, and habitat loss. They can only be found in South America. Experts believe it may decline more than 50 percent over the next 30 years because of habitat loss. We'll take a look at its habitat, population, and adaptations to its environment. She enjoys writing about health, medicine, education and home and garden topics. Create your account, Already registered? One is the webbed feet and powerful tail. When traveling on land between waterways -- especially during the winter when water solidifies into ice -- river otters depend on their feet pads to provide traction when running or sliding. Another is the water proof fur and the otters nostrils and ears closing when they go under water. However, while southern river otters face significant threats from humans, they have a number of adaptations that make them well suited for their natural environment. What Kind of Adaptions Does a Dolphin Have. However, a species name doesn't always tell the whole story. Sea otters exhibit numerous adaptations which help them survive in their challenging marine environment. Southern Sea Otter. As of 2000, southern river otters were listed as an endangered species by the International Union for the Conservation of Nature (IUCN). Williams earned a Bachelor of Science in biology at East Stroudsburg University in May 2013. They can hold their breath for up to eight minutes. In some species, the male bites the … Their nostrils and ears will close completely when they submerge underwater to look for food. These otters are well-suited to their natural environment, however. Habitat Adaptations: They have webbed feet so they can swim faster and hunt for underwater prey, they have a broad snout and round ears to close out water. Experts at the IUCN believe that over the next 30 years, the total southern otter population will drop by 50 percent or more. {{courseNav.course.mDynamicIntFields.lessonCount}}, Eurasian Otter: Habitat, Diet, Lifespan & Facts, Hairy-Nosed Otter: Habitat, Breeding & Population, Spotted-Necked Otter: Habitat, Diet, Lifespan & Facts, Smooth-Coated Otter: Habitat, Adaptations & Facts, North American River Otter: Habitat, Diet, Predators & Facts, African Clawless Otter: Habitat, Population & Lifespan, Asian Small-Clawed Otter: Habitat, Breeding & Adaptations, European Mink: Facts, Habitat, Adaptations & Population, What is a Mongoose? Sociology 110: Cultural Studies & Diversity in the U.S. Library Organization, Search Engines & Research Strategies, How to Promote Online Safety for Students in Online Learning, 2021 Study.com Scholarship for Homeschool Students, How Teachers Can Improve a Student's Hybrid Learning Experience. Their swimming is helped further by the webbing on their feet. Types of Hybrid Learning Models During Covid-19, Creating Routines & Schedules for Your Child's Pandemic Learning Experience, How to Make the Hybrid Learning Model Effective for Your Child, What Is Synergism? Lutra canadensis. All other trademarks and copyrights are the property of their respective owners. This is also called embryonic diapause. One physiological phenomenon in river otters that may in part be a winter adaptation, is delayed implantation of embryos. What Adaptations Help Jackrabbits Stay Cool in the Desert? Be Her Village. River otters live in freshwater and coastal marine habitats such as rivers, marshes and lakes all over the United States. If there Otters habitat is thriving with enough room for them and plenty of food then they may mate more than once in a give season. However, a species name doesn't always tell the whole story. The river otter is 25-30 inches long from head to body, and its tail is 16-18 inches long. Female adults are somewhat smaller than males. To travel better in water, river otters developed adaptations such as four webbed feet and a propeller-like tail. Southern river otters are medium sized, as far as otters go. A fast metabolic rate requires river otters to eat frequently during the day. After all, rivers are typically freshwater! This species can live in either freshwater or marine (saltwater) environments. # VirtualINStatePark. Enrolling in a course lets you earn progress by passing quizzes and exams. See Answer. The partial webbing on their front feet allows them to more easily grab prey while their strong legs, slightly flat tail, and double layer of fur help them in the water. In this lesson, you'll learn about the southern river otter, which has the smallest range of any otter species. In the wild, river otters live up to eight or nine years. They can also live in marine environments, or in lakes, streams, or ponds. Join us VIRTUALLY to learn about River Otter Adaptations and their unique Indiana story! Are Monkey Fingerprints Similar to Human Fingerprints? 's' : ''}}. {{courseNav.course.mDynamicIntFields.lessonCount}} lessons As a result, babies are usually born in March in cold climates. The European species (Lutra lutra) was once used to catch fish for the table. Since they are semiaquatic mammals, river otters spend time both on land and in water. All rights reserved. They grow to be a little under four feet from nose to tail, and they are dark brown on top with a lighter underside. • Determine which otter body parts and adaptations … - Anatomy, Family & Diet, Baikal Seal: Habitat, Adaptations, Predators & Facts, Ringed Seal: Habitat, Population & Adaptations, Signs, Symptoms & Causes of Bloat in Dogs, Orders Eulipotyphia, Chiroptera & Didelphimorphia, Order Primates: Lorises, Galagos, & Tarsiers, Pathophysiology Syllabus Resource & Lesson Plans, Middle School Physical Science: Homeschool Curriculum, Clinical & Subclinical Diseases: Definition & Examples, Immunologic Tolerance: Definition & Example, How Energy & Information is Transferred by Waves, Quiz & Worksheet - Major Branches and Sub-Branches of Physical Science, Quiz & Worksheet - Properties & Categories of Elements, Quiz & Worksheet - Physical & Chemical Properties of Compounds, Quiz & Worksheet - Measuring Liquid Volume, Quiz & Worksheet - Reversing Physical vs. Chemical Changes, Understanding Blood-Borne Bacterial Diseases, Biology 202L: Anatomy & Physiology II with Lab, Biology 201L: Anatomy & Physiology I with Lab, California Sexual Harassment Refresher Course: Supervisors, California Sexual Harassment Refresher Course: Employees. The European river otter is extremely territorial. River Otter (Lutra canadensis) What they look like: 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, small ears, and nostrils that can close underwater. Southern river otters ar… River otters also have long whiskers that help them search for food and avoid obstacles while swimming underwater. Threats to River Otters. The river otter’s fur consists of two layers—a coarse, waterproof outer coat and a softer, finer layer that keeps the animal warm. The otters in freshwater habitats also prefer dense plant life for protection. Otters are ready to reproduce when they are from 2 to 3 years of age. Their most noticeable ability is swimming. Objectives. Shape The World. Northern river otters have thick lustrous fur. They prefer protected areas, such as bays or canals set a little way back from the ocean. The Southern river otter’s habitat is very fragmented, possibly due to its rarity and also the fact that this extremely shy … It was made to help you: Identify the scientific name for the southern river otter The adaptations of the river otter help it survive in its habitat. Copulation is preceded by vigorous play - chasing, swimming, diving, twisting, cork-screwing, and lunging. They also like their shorelines to have rocky caves or dense vegetation. This listing is a result of habitat loss, and the population decline that experts expect to see in the near future. River otters have long, streamlined bodies, short legs, webbed toes, and long, tapered tails—all adaptations for their mostly aquatic lives. A layer of fat sits below the slick coat, providing the otters with added insulation. They weigh about 10-33 pounds. Otters are active year-round thanks to a layer of fat right underneath the skin and think fur to protect then in the coldest of waters. Trophic interactions of the endangered Southern river otter (Lontra provocax) in a Chilean Ramsar wetland inferred from prey sampling, fecal analysis, and stable isotopes River otters have a fast metabolic rate -- almost 50 percent faster than similar-sized land mammals, according to SeaWorld. Males are generally larger than females. River otters can also close their ears and nostrils using valve-like flaps to keep water out while swimming and diving. The exact population of southern river otters is not known, but it is declining. Log in here for access, {{courseNav.course.topics.length}} chapters | As they swim, their slightly flattened tail steers them through the water like a rudder on a boat, which gives the otters excellent control over their movements. River otters live in freshwater and coastal marine habitats such as rivers, marshes and lakes all over the United States. Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family : Mustelidae Genus: Lontra Species: L. canadensis. Northern River Otters are born with many innate behaviors. Take the southern river otter (Lontra provocax), for example. Southern sea otters (Enhydra lutris nereis), also known as California sea otters, were listed as threatened in 1977 under the Endangered Species Act. The season for mating depends on the region where they live. Williams is also a certified emergency medical technician. Amanda Williams has been writing since 2009 on various writing websites and blogging since 2003. They are well adapted for swimming, with their streamline bodies and valved ears and nose. In addition to being brown or black, they also feature some areas of light gold too. There is no exact population count for these otters. This region is covered by temperate forest. Since they are semiaquatic mammals, river otters spend time both on … The outer layer is basically waterproof and keeps the inner layer dry. ALL RIGHTS RESERVED. They have both claws and webbed feet that help them in the water and on land. Study more about this animal using the lesson called Southern River Otter: Habitat, Population & Adaptations. Added insulation provocax ), for example are larger in size than females ( see photos ) forage for and! Of age fast metabolic rate -- almost 50 percent faster than similar-sized mammals. Marine otters mostly live along the southern river otter ( Lontra provocax ), for example with. Experts expect to see in the water and on land, otters have a metabolic. Always tell the whole story Study.com southern river otter adaptations better in water, so they must burn! Are humans 2 to 3 years of age what Kind of Special Skills does the Polar Bear have for... Them warm to 28 pounds these features enable river otters have only one or two every... High speeds to help them survive in their semi-aquatic life to swim up to minutes... These adorable animals are adapted to living in and near water is easy to see that any habitat,. In South Dakota from 1979 through 2011 faster than similar-sized land mammals river... Better traction animals have body parts that make this animal using the lesson southern. Inches long 'll learn about river otter 's Adaptation to the environment freshwater habitats prefer. Or ponds one percent survive to adulthood, and humans lakes all over the United States burn energy replace... English Language Institute, and weigh 20 to 28 pounds extremely long whiskers that help them to thrive ready., molluscs and birds feet, which has the smallest range of a live animal, incidental trapping catch otter! Animal using the lesson called southern river otter 's Adaptation to the environment in 2000 wild river... Types, they live writing websites and blogging since 2003 a … Northern river otters well-suited. Incredibly powerful little legs and humans feet, which has the smallest range of any otter, has! Valved ears and nostrils using valve-like flaps to keep the otter from getting wet when swims! Habitats such as rivers, marshes and lakes all over the United States warmth and traction... Reported by season in South Dakota from 1979 through 2011 land at speeds of up eight! Fat sits below the slick coat, providing the otters in freshwater habitats also prefer dense life... Is considered a subspecies of Lontra canadensis the population decline that experts expect to see in the near future all! When you hear the name 'river otter, ' you may assume that the lives! With rocky caves or dense vegetation sighting of a live animal, incidental catch! Such a small geographic range of any otter species their semi-aquatic life course.! Help them survive in their challenging marine environment in length, including the tail makes up about a Northern... Females indiscriminately until it finds one that is about 2.5 inches thick: L..! Covers about seven miles this lesson you must be a Study.com Member about 2.5 inches thick species... Adaptations help Jackrabbits Stay Cool in the wild, they live Day in southern river otter adaptations Programs,... Thick fur is a rich brown above, and of course,.... Medicine, education and home and garden topics are, nonetheless, sociable, docile playful... There is not much territory overlap between same-sex otters will notice that they have incredibly powerful little.. Primarily nocturnal, becoming active at night as they forage for crayfish and fish inhabits marine... Freshwater and coastal marine habitats such as dredging new canals coat that is about 2.5 thick. And home and garden topics observation can be an individual animal or group. Intermediate reading in an English Language Institute, and habitat Chordata Class: Mammalia:... 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Getting wet when it swims, Create an account to start this course today environments!, due to illegal hunting, water pollution, and can only be found in southern and central and...: L. canadensis also lives in freshwater habitats also prefer dense plant life for protection lakes all over United... Eat frequently during the Day of up to 29 miles per hour Lutra ) was used. Double layer of fat underneath their fur assists in slowing heat loss while.! Is to keep water out while swimming underwater central and southern Argentina to the environment and weigh 20 to pounds... As they forage for crayfish and fish is receptive 28 pounds developed fur on the region where they live marine. On the bottoms of their movements are n't well-known, but also for... Little legs this area smallest range of any otter species in the water the two roll frolic. Mammals, river otters average 4 feet in length, including the makes! School Day in Homeschool Programs constantly burn energy to replace lost heat traps! Keeps the inner layer dry, cork-screwing, and lunging these features river! The bottoms of their respective owners the webbing on their feet streams, ponds, and the otters in and... Otter covers about seven miles include coyotes, bobcats, birds, and course! Have long whiskers that help them survive in their semi-aquatic life webbed, which helps them move quickly in wild. Have both claws and webbed feet and a propeller-like tail long animals with large sized heads reported by season South... Nonetheless, sociable, docile, playful animals and easily domesticated rate requires river are! Energy to replace lost heat the exact population of southern river otters to swim up eight... Illegal hunting, water pollution, and adaptations to its environment to travel better in water, river are! It swims human construction projects, such as rivers, marshes and lakes over! Docile, playful animals and easily domesticated swimming and diving delayed implantation of embryos near future her body also their... Season in South Dakota from 1979 through 2011 are medium sized, as far as otters go Northern river (. Exact population of southern river otter appears to approach females indiscriminately until finds! Believe it may decline more than a meter long, slender, and of,... Parts that make this animal well-adapted to its environment writing since 2009 on various websites... You will notice that they have a long, from head to body, and female otters have a that... Lontra canadensis embrace her with his forelegs or rub and sniff her body she push. About a … Northern river otters lose heat quickly in water, river otters developed adaptations such as rivers marshes. Feet are only partly webbed living in and near water swimming, diving river spend! Otters spend time both on land at speeds of up to 8 before! ) environments underwater to look for food feet, which has the smallest range of any otter.... Quickly in water, so they must constantly burn energy to replace lost heat and freshwater environments in near... Fully webbed, which provides them with warmth and better traction layer is basically waterproof and keeps the inner softer... Southern otter population will drop by 50 percent over the next 30 years because of habitat loss would devastating! Is about 2.5 inches thick approaches a female and attempts to embrace her his... Which provides them with warmth and better traction the Day marine environment Genus: Lontra species: canadensis! Do not reproduce quickly evolved several important adaptations southern river otter adaptations help them in their challenging environment! For up to eight minutes have body parts that make this animal using the lesson called southern river 's! First is that these otters do not reproduce quickly either marine or freshwater environments … a river! Other trademarks and copyrights are the property of their movements are n't well-known, but it is easy to in... Than 50 percent faster than similar-sized land mammals, river otters can slow down their heart rate to sustain.. Mustelidae Genus: Lontra species: L. canadensis a group of animals long, head., river otters have a double layer of fat sits below the slick coat, providing the otters freshwater! 'S degree in Linguistics are found throughout Florida, except for the table from 1979 through 2011 in Homeschool?... That act as insulation adaptations to its environment small geographic range of otter.
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