Start the day smarter. Get all the news you need in your inbox each morning. Sharks do not have bones. Sharks are elasmobranchs, meaning they are made of cartilaginous tissues. Other elasmobranchs ...

Sharks don’t have bones. 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 ...

Sharks are a diverse group of mostly predatory fish. They do not have bones; their skeletons are made of a tissue called cartilage. Sharks traveled the seas long before the dinosaurs roamed Earth ...

It's hard to resist a puppy's adorable face, but don't be fooled — they're willing to be a little rough around the edges if ...

A volunteer at the Field Museum, where Sue resides, discovered the shark’s teeth in sediment left over from when the dinosaur’s bones were pulled from the ground. “Most of its body wasn’t preserved, ...

The ratios of strontium isotopes in fossil shark teeth can be used to better understand how coastal environments evolved in ...

Her size is based on a set of teeth uncovered in the Bone Valley Formation in Florida in the 1980s – the largest of which are 6.2 inches long. “Most people have never been close to a shark ...

The tip of a megalodon tooth is preserved in this fossil whale rib bone Most reconstructions show megalodon looking like an enormous great white shark, Carcharodon carcharias. This is now believed to ...

Nicknamed the Ginsu shark after the kitchen knife that slices and dices, Cretoxyrhina ripped apart prey with a mouth full of razor-sharp, bone-shearing teeth. Evidence suggests Cretoxyrhina fed on ...