"Only such perfectly preserved specimens allow researchers to draw conclusions about the living conditions of the ray at that ...

Old Fish Fossil Suggests That Humans Don't Share a Common Ancestor With Sharks, Claim Researchers In 2015, researchers ...

Sharks and rays have populated the world's oceans for around 450 million years, but more than a third of the species living ...

Sharks belong to a group of creatures known as cartilaginous fishes, because most of their skeleton is made from cartilage rather than bone. The only part of their skeleton not made from this soft, ...

With its cartilaginous body and cold blood, the whale shark is decidedly not a whale. But this shark is about as long as a ...

The researchers took swabs from the white shark's bite wounds and sequenced for any genetic material that the predator may ...

There have been five mass extinctions in Earth’s history - and one group of animals has survived them all: cartilaginous fish ...

The Devonian ancestors of fishes living today belonged to two main nonarmored groups. The cartilaginous fish, so-called because cartilage formed their skeletons, later gave rise to sharks and rays.

‘We think early sharks developed a cartilaginous skeleton because it better suited their lifestyle,’ explains Emma Bernard, our Fossil Fish Curator. ‘Being light and more flexible than bone, cartilage ...

This made us wonder whether the cartilaginous outer ear may also have arisen from some ancestral fish structure." The first clue toward cracking this mystery was the team's discovery that gills ...