They’re often found in … They eat mostly aquatic organisms such as frogs, fish, turtles, insects, and some small mammals. Do giant otters live in a group? courses that prepare you to earn This allows them to feed even in murky waters. River otters don’t breed until they’re at least five years old. With the ability to smell concentrations of fish and their high metabolisms, otters spend most of their time hunting for their next meal. They can grow to be more than a meter long, from head to tail, and weight up to 14 kg. It rests in burrows, dense shrubbery, under the root system of overturned trees, etc., so look for them along rivers and streams and around lakes and ponds, where there is a lot of forest and shrubby cover. They’re often seen in marshes and wetlands. Sea otters eat about 25% to 30% of their weight. of food daily. Those that have offspring may hunt more because it takes a great deal of milk to feed their young. The den will often have many entrances and exits. River otters eat 15% to 20% of their total body weight each day. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 and 30.9 lb). 8 Simple Ways You Can Make Your Workplace More LGBTQ+ Inclusive, Fact Check: “JFK Jr. Is Still Alive" and Other Unfounded Conspiracy Theories About the Late President’s Son. Soon the babies are just as at home in the water as the adults. It is around 3-4 feet in length, weighing around 11-30 pounds. River otters are nocturnal hunters. The semi-aquatic river otter spends about 75% of its time on land and 25% in the water. They generally forage in the water, but they can also hunt on land. The river otter is protected and insulated by a thick, water-repellent coat of fur. In Norfolk by the 1970s most traditional otter sites were deserted and whole river systems no longer supported any otters. Anyone can earn Sea otters eat a wide range of marine animals, including mussels, clams, urchins, abalone, crabs, snails and about 40 other marine species, equaling approximately 25 percent of their weight in food each day, according to Defenders of Wildlife. and career path that can help you find the school that's right for you. However, otters differ from similar species like beavers, muskrats, and nutria that feed on plants. Fact Check: Is the COVID-19 Vaccine Safe? The North American River Otter is an animal with a very high metabolism, so it must eat quite often. Log in here for access. They enjoy carp, sunfish, minnows, suckers, sculpin and salmonids such as trout and salmon. It is a carnivore , hunting other animals for its food. Sleek, cylindrical body; small head; tail nearly one third of the body and tapers to a point; feet webbed; claws short; fur is dark dense brown. All other trademarks and copyrights are the property of their respective owners. Facts about River Otters talk about an animal, which can be found on the coasts or waterways of North America. The North American River Otter is a playful, semi-aquatic mammal found in waterways of North America. Otters are often elusive, with large ranges and nocturnal behaviour making spotting them a rare and wonderful experience. - Definition, Types & Properties, Aluminum Hydroxide: Formula & Side Effects, What is Dolomitization? credit by exam that is accepted by over 1,500 colleges and universities. They can spend up to five hours each day finding the food that they need in order to survive. Otters are carnivores, which means they eat meat. They’re often seen in coastal areas near the mouths of rivers and creeks. Physical characteristics help otters with their outstanding swimming abilities. While otters are mostly carnivores, they will eat the corn that is used to fish for trout, especially along rivers that are stocked with hatchery fish. The U.S. Supreme Court: Who Are the Nine Justices on the Bench Today. To unlock this lesson you must be a Study.com Member. Otters eat from 15% to 25% of their body weight each day. Bobcats, alligators, coyotes, raptors, and other large predators will sometimes prey on North American river otters. {{courseNav.course.mDynamicIntFields.lessonCount}} lessons – but our river systems still require extensive habitat management to restore them to a healthy level that can sustain fish stocks and wildlife. Even with the speed and agility of this otter, predators are still a very real threat. It is not uncommon for anglers to have to fight river otters for their bait. Sea otters eat about 20-30% of their body weight each day. Study.com has thousands of articles about every In certain areas, alligators will nab them as well. {{courseNav.course.topics.length}} chapters | 's' : ''}}. The river otter food web plays a crucial role in the environments the river otter calls home. These furry water lovers hunt mostly at night, following the scent of fish even into urban areas. A large male may consume as much as 11 kg (25 lb.) Please pass this on to an otter group in that area, so they can add the information to their database for monitoring and survey purposes. credit-by-exam regardless of age or education level. Its very long whiskers help with the detection of its prey while underwater. River otters are apex predators in their food web. Its dark brown fur is smooth and water repellent, an important trait for a fast-swimming mammal. It is known as the common otter or northern river otter. Otters eat from 15% to 25% of their body weight each day. imaginable degree, area of River otters' main source of food is fish, but otters are opportunists by nature and will eat a wide variety of foods. study Create an account to start this course today. Mothers nudge the tiny otters into the water, and then strong instincts take over. just create an account. A female Otter can spend up to 8 hours a day nursing. Get the unbiased info you need to find the right school. A member of the weasel family, the North American River Otter has a long body with short but strong legs. Posted on September 12, 2018 September 13, 2018 by Kim Smith. It prefers to dine on fish, but also eats crayfish, and occasionally small mammals and birds. Amazing behaviors. Wendy has taught high school Biology and has a master's degree in education. What Do River Otters Eat | River Otter Facts. Otters declined catastrophically throughout England in the late 1950s. Enrolling in a course lets you earn progress by passing quizzes and exams. Did you know… We have over 220 college Although its name also suggests that it is only a river-dwelling animal, this isn't true. People also call it North American river otter. The river otter food chain also consists of mussels, bivalves, snails, cr… Sea otters have a high metabolic rate (that is, they use a high amount of energy) that is 2-3 times that of other mammals their size. In this lesson, we will take a closer look at one particular species, the North American River Otter. The North American River Otter is a playful, semi-aquatic mammal found in rivers, lakes, ponds and marshes of North America. At the Smithsonian's National Zoo, they eat a prepar… Sometimes river otters will travel between 10 and 18 miles (16 and 29 km) in search of food. A fish farmer who claims his business was ruined after otters ate all of his 22,000 prized carp has been told his argument for damages is "hopeless". They will sometimes eat plants, and even the occasional small mammal, such as a rabbit. What is the Difference Between Blended Learning & Distance Learning? River otters and giant otters hunt by using their vibrissae to detect movements of prey in the water. This semiaquatic mammal has the weight of 11 to 30.9 lb or 5 to 14 kilograms. Unlike some other semi-aquatic animals, the North American River Otter is quite good at bounding around on land as well. Eurasian otters are indigenous to the UK and can be found in either fresh or salt water, although it’s usually known as the river otter for the obvious reason. | {{course.flashcardSetCount}} They have webbed feet for swimming, dense fur for warmth, and can close their ears and nose underwater. The primary source of food for the Otter is fish. Join us to learn more about a day in the life of this lively otter. Tag: what do River Otters eat? As aquatic mammals, otters spend most of their time in the water. You can test out of the Babies first learn to swim when they are about 2 months old. They also eat small mammals and birds. The North American River Otter is quite versatile, making its home in lakes, swamps, ponds and marshes, in addition to rivers. What are some facts about this animal and what makes it unique? Let's take a closer look at this playful creature. They hunt either alone or in pairs. The oldest recorded otter reached around 12 years of age, but this is exceptional. River otters eat mostly frogs, crabs, crayfish, fish and mollusks. Some other common items that they will eat include invertebrates, birds, and small sized animals. So, a 50-pound otter would need to eat about 10-15 pounds of food per day. Otters weigh 35-90 pounds (males weigh more than females). River otters also prefer slower-moving fish to game fish. Earn Transferable Credit & Get your Degree. OTTER KIT STEALS FROG FROM OTTER MOM? However, river otters also hunt in the eelgrass beds of our local bays, which serve as nurseries for all sorts of small fish, including salmon. They’re a little harder to see in vegetated rivers but keep looking, especially when boating. Males are larger in size than females (see photos). As you may guess from its name, the North American River Otter is a species of otter found in and near waterways of North America. - Anatomy, Family & Diet, Baikal Seal: Habitat, Adaptations, Predators & Facts, Ringed Seal: Habitat, Population & Adaptations, Signs, Symptoms & Causes of Bloat in Dogs, Biological and Biomedical Outside of fish, river otters will also eat crustaceans, insects, birds, oysters, shellfish, turtles and a number of other aquatic life. Humans also kill sea otters when they use fishing gear that traps the otter or hit the otter with boats. They use their long whiskers when swimming underwater to feel for the movement of their prey. 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 Otter: Habitat, Population & Adaptations, Quiz & Worksheet - North American River Otter, Over 83,000 lessons in all major subjects, {{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, African Clawless Otter: Habitat, Population & Lifespan, Asian Small-Clawed Otter: Habitat, Breeding & Adaptations, European Mink: Facts, Habitat, Adaptations & Population, What is a Mongoose? Coyotes, large raptors and bobcats are just a few animals that hunt otters. The otter is a fish hunter, though it happily eats waterbirds, amphibians and crustaceans too, including American signal crayfish. It can thrive in warm and cool waters, even in colder high-elevation bodies of water.