Otters have a streamlined body developed for swimming. Otters use their tails and webbed feet to help them swim. These mammals are related to the weasel and badger. You'll find otters in lakes, rivers and streams, and sea otters live in the ocean. Otters can float in groups of up to 100 otters, known as rafts. While otters mostly swim on their stomachs, they can also swim on their backs.
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Otters have 13 known species to exist, according to Otter World. The giant otter was nearly hunted into extinction. Though otters are small creatures, sea otters can grow to 5 feet in length and weigh up to 31.8 Kilogram. Otters will eat and nurse their babies only in water. They can also fall asleep on the water. Otters have thick fur, which keeps water out and helps to keep them warm.
Otters have a unique way to eat food. Unlike some animals, they can use tools. Sometimes otters can't open their food with their claws. Otters will use rocks to open marine food such as clams, mussels and snails. They put the rock on their chest and smash the shellfish onto the rock until the shellfish breaks open.
Otters can hold their breath for up to four minutes while diving for food. Many otters eat fish. Sea otters will also eat crabs, sea urchin and even octopus, according to National Geographic. River otters eat frogs, turtles, snakes and other river animals. Some otters love bugs like worms. Otters need to eat a lot and can spend five hours a day searching for and eating food. Otters can eat up to 25 per cent of their weight, or up to 4.54kg. of food in one day.
The sea otter is the only otter to have her pups in the water, states National Geographic. River otter pups are born blind and stay in a den until their mother coaxes them out. Some otters give birth to one pup at a time. The river otter can have up to four pups at a time.
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