Sharks are a group of fish known for their cartilaginous skeletons, streamlined bodies, and sharp teeth. They belong to the class Chondrichthyes, which also includes rays, skates, and chimeras. Sharks are known for their predatory behavior and are often at the top of the marine food chain. There are hundreds of shark species, varying in size, shape, and habitat.
They can be found in oceans and seas around the world, occupying a wide range of habitats from shallow coastal waters to deep oceanic regions. Sharks play a crucial role in marine ecosystems, helping to maintain the balance of populations and contributing to the overall health of the oceans.