Otters have long ang slim bodies with short legs, webbed feet, and thick fur that keeps them warm in cold water.

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Otters members have of the Musteliddae family, which also includes animals like weasels and badgers. They can be found on almost every except Australia and Antartica.

A group of otters is called a "craft" especially when they are seen floating together in sea.

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Their thick fur is made of two layers that keep them warm and waterproof. Otters can close their ears and noses while swimming underwater, they can spend a lot of time grooing their fur to maintain its insulating ability

Their main food is fish, but they also eat crabs, frogs, shellfish, and small aquatic animals.

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They are skilled hunters with sharp teeth to catch slippery prey, and sometimes they use stones to break shard shells. Their diet helps maintain the balance of aquatic ecosystem.

Otters live in both freshwater and coastal environment.

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They can be found in rivers, lakers, marshes, and along seashores. Their habitats usually have clean water, plenty of fish, and safe places like burrows, dense vegetation, or rock crevices for resting. Otters need healthy environment because they are very sensitive to water pollution.

The body of an otter is long and slim, covered with dense, waterproof fur.

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It has short but strong legs with webbed feet that help it swim quickly. Its tail is thick and muscular, used for balance and movement int the water. The otter's body shape is very flexible, making it easy to dive, twist, and play while swimming.