Introduction to Penguin: Penguin is a kind of bird, but it cannot fly, but it can swim. Penguin legs are short and thick, growing at the bottom of the body to reduce water resistance when swimming. Its short legs make it awkward to walk on land, but when it wants to go fast, it can slide quickly on the ice as long as it lies down and pushes hard with its feet. Penguins have webbed feet that allow them to stand firmly on ice. The "climbing expert" among penguins is called the rockhopper penguin. It can jump between rocks and climb steep slopes easily.

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