Fossils reveal that giant predatory sharks existed 15 million years before megalodon and were already top predators in Cretaceous seas.

During the Cretaceous Period, a genus of sharks roamed the sea with rows of unusual teeth. Mostly large and rounded, these chompers were not meant to slice through their prey, but to grind and crush ...

Fossilized remains of acolossal shark discovered in northern Australia have upended scientists’ understanding of when oceanic ...

When and where did sharks first become so massive? The discovery of enormous shark remains from northern Australia has just ...

The fossil of a huge great white shark relative that lived among the dinosaurs has been discovered in Mexico. The discovery was made in a limestone quarry to the country's northeast by an ...

An Australian fossil reveals the first lamniform shark, measuring 20 feet long and living 15 million years earlier than believed.

In the age of dinosaurs—before whales, great whites or the bus-sized megalodon—a monstrous shark prowled the waters off what’s now northern Australia, among the sea monsters of the Cretaceous period ...

Ancient underwater volcanic eruptions may have made modern day sharks more fierce then their predecessors, a new study has found. The infamous shark species we know of today evolved from stubby bottom ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A giant spike in ocean temperatures about 93 million years ago may ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. During the ...