The minerals present in the sediment in which it fossilised have turned this tooth black. Sharks belong to a group of fish called Chondrichthyes. Their skeletal structure is made from a light, ...

A Spanish shark research organisation says it may have captured the first footage of a rare deep-sea creature swimming in the ...

According to the organization, the fish is a so-called “black seadevil” known by its scientific name Melanocetus johnsonii. They typically swim between 650 and 6,500 feet below the ocean’s surface.

A fearsome killer C. megalodon, often called simply “megalodon,” is famous for its massive size and sharp teeth. Its name in Greek means “big-toothed glorious shark” – a fitting moniker ...