Contrary to its evocative name, the blue shark (Prionace glauca) may possess an unsuspected ability: to change its color. A team of Hong Kong researchers has identified nanostructures in its skin, ...

Rosie McCall is a London-based freelance writer who frequently contributes to Discover Magazine, specializing in science, health, and the environment. View Full Profile. Animals like chameleons and ...

A great white shark nicknamed Deep Blue is considered by many to be the largest of its species ever recorded. But a prominent researcher has cast doubt on that notion. Michael Domeier, in a Tuesday ...

The zoo announced the arrival of "Blue," a sandbar shark who is making her home in the Oceans exhibit. Former "TODAY" co-host Hoda Kotb visited with animals and staff at the Indianapolis Zoo on ...

Broadnose sevengill sharks are known for their large bodies and sharp teeth. The sharks can grow up to 9.8 ft in length and weigh over 200 pounds. Alessandro De Maddalena Getty Images/iStockphoto When ...