They went extinct around 260 million years ago ... Genetically, they were very closely linked to the sharks of today! These sharks lived all around the world until about 80 million years ago.

Now, all that remains of the magnificent ... Mako sharks are the best living representation of its extinct cousin, albeit much smaller. “A mako shark would look puny next to a megalodon ...

A shark only just formally discovered might already be extinct - a fate no shark has yet ... the Tucuxi to its endangered list, meaning that all of the world's freshwater dolphins are now ...

Scientists have discovered that the long-extinct megalodon, also known as the megatooth shark, had a body temperature 7 degrees Celsius warmer than the surrounding seawater. This information might ...