Sharks have been around for hundreds of millions of years, appearing in the fossil record before trees even existed. But what did they evolve from, are they 'living fossils', and how did they survive ...

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

I write about the world of biology. Sharks have roamed the open seas for close to half a billion years and have witnessed the Earth’s ... [+] evolution from a primordial soup to the haven for ...

In the scorching desert of Peru’s Pisco Basin, a major fossil discovery has been made. Paleontologists have unearthed the ...

The exact number varies depending on the species. The only part of a shark's skeleton not made of cartilage is their teeth, which they're famous for. Since cartilage is softer than bone and teeth, it ...

When a shark egg appeared one day in a shark tank at a Louisiana aquarium, staff were puzzled. That’s because the tank only has two sharks in it — and they’re both female.

Sharks and rays have populated the world's oceans for around 450 million years, but more than a third of the species living today are severely threatened by overfishing and the loss of their habitat.

The first sharks on Earth: Ancient relatives of sharks first appeared in the world's oceans about 400 million years ago. Today, sharks are classified among the elasmobranchs, which also includes ...

but Sophia tells me confidently that evolution "basically means engineering". And Jack says that sharks are lighter underneath so that "when the sun is on the sea, you can't really see the sharks".

Basking Shark This poem compares the paths of the evolution of humans and basking sharks. The sharks lead lives relatively unchanged for millions of years, but humans, on the other hand ...