North river otter

Lontra canadensis

Classification of North river otter

Domain-Eukaria: Members are multicellular or single celled, have a nucleus.

Kindom- Animalia: members have multicellular ,have the ability to move at some point at their life.

Philum-Chordata: Bilateral symetry, complete digestive system, and segment muscles.

Subphilum-Vertebrata: movment provided by muscles ,heart with 2-4 chambers ,and share bony elements.

class-Mammalia: about 5000 species in total ! all mammals.

Order-Carnivor: live all around the world, usually normal sized animals.

family-mustelidae: 52 species in total, never found in Australia or Antarctica, short legs


Species-Lontra Canadensis

physical discriptions

  • Weight: most river otters weight about 5-14 kilograms.
  • Length: on average is about 35-51 inches.
  • Color: river otters can be dark gray ,brown and dark brown.
  • Food: the river otter eats the following things: fish, amphibians, birds, reptiles ,and other animals found by or in the water.
  • Predadores: river otters are usually eaten by bobcats, coyote, alligators and some big birds.
  • Habitats: North river otter can live in cold or warm wether. They live mostly where there is a lot of food for them to eat. River otters make underwater tunnels that leeds to their houses.River otters hate polluted waters. River otters lives in lakes, rivers and ponds.
  • Where river otters lives: North river otters live all over Canada and a few places in the north of the United Sates.
  • A nice thing about river otters is that they are not agressive at all to any kind of animals and humans.
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This is where the North River Otters live

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Physical Adaptations Of North River Otter

The North River otter can hold their breath for 10-15 minutes underwater which helps them stay underwater for a longer amount of time which gives them time to built their underwater tunnel. The north river otter has webbed feet which helps them swim faster and smother trough the water.They have big claws which help them kill their prey faster and better. Since the river otters predators live on land not in water , the ability to breathe underwater comes in handy because the predadores won't want to attack the river otter. The River otters also sometimes can camouflage trough the underwater rocks .

Behavioral Adaptations of North River Otter

River otters love to play and slide in the snow, mud ,and water. The river otters able to run on land about 29 kl/hr. They normally hunt at night . The river otters love to play and do fun tricks underwater just for fun and entertainment. The otters love everywhere where there is water ,but the water has to be clean. The males built a bigger home than the female usually does. The north river otters are always full of energy to give. The river otters practice hunting skills underwater to be able to kill a fish faster and better. The river otters are very playful animals



Burton, M. (2002). River otter. In International wildlife encyclopedia (3rd ed., Vol. 16, pp. 2179-2181). New York, NY: Marshall Cavendish.

Lontra canadensis" (On-line), Animal Diversity Web. Accessed March 11, 2015 at