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Large, extinct species of cats named after the shape of their large canine teeth.
Otters are semi-aquatic predatory mammals.
One of the most common types of Anatidae, the ancestor of the domestic duck.
The most ancient group of animals, they live underwater, lack real tissues and body symmetry.
Freshwater fish used as food in many parts of the world.
Long-necked herbivorous dinosaur with a robust body.
Find out interesting facts about the anatomy of amphibians and their vital processes!
The American bison is the largest land animal in North America.