Whale sharks are the largest fish on the planet; the average whale shark is between 18 and 40 feet long, though the Georgia Aquarium says the largest whale shark observed was 61.7 feet long.

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 ...

Cartilage is a tough ... Just for good measure, the whale shark, which is the world’s largest fish, has a record length of 61 ...

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 ...

Their skeletons are made of cartilage - the same soft, flexible stuff as your ears and the tip of your nose are made of. This is true for all sharks, from the formidable great white to the gentle ...