A “serrated blade” found sticking from a rock in the United Kingdom has been identified as a “nearly perfect” prehistoric shark tooth, experts say. It belonged to a Squalicorax falcatus ...

Serrated teeth have a jagged edge - a bit like the blade of a bread knife. Sharks don’t chew, so this combination of pointed lower teeth and serrated upper teeth helps them to cut prey into smaller ...

using the lower teeth like a blade to tear off circular chunks of flesh. Smaller prey is eaten whole. This mysterious shark is not often seen by cameras: The first photograph of a live Greenland ...

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 ...

Sharks have ruled the Earth’s oceans for 400 million years and recent research on fossilized shark teeth has led to the ...

A “serrated blade” found sticking from a rock on Isle of Wight in the UK has been identified as a shark tooth that could be 100 million years old, experts say. Wight Coast Fossils photo A ...