Sharks are a diverse group of cartilaginous fish that inhabit oceans around the world. They come in a variety of shapes and sizes, with over 500 different species identified so far. Sharks are well known for their sharp teeth and predatory nature, but they also play an important role in maintaining a healthy ocean ecosystem. Despite their fearsome reputation, shark attacks on humans are rare, and many shark species are actually threatened by overfishing and habitat destruction.
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