Human-made structures act as artificial reefs, luring plankton and, in turn, Earth’s largest fish. That could put whale sharks at risk of ship strikes.

Whale sharks are the largest fish on the planet; the average whale shark is between 18 and 40 feet long, though the Georgia ...

Sharks are a group of fish with skeletons made from cartilage instead of bone ... Read on to find out about the biggest sharks in the world. The whale shark, Rhincodon typus, is the largest fish in ...

The difference between a shark and other fish: Unlike bony fish, sharks, rays, skates, and chimaeras are cartilaginous fish, meaning their skeletons are made of cartilage, not bone. Their skin is ...

because most of their skeleton is made from cartilage rather than bone. The only part of their skeleton not made from this soft, flexible tissue is their teeth. The group includes the more famous ...