Australia’s extinct thylacine, also known as the Tasmanian tiger, was not the powerful predator European settlers had assumed ...

Scientists identified Praearcturus gigas as the largest known scorpion, measuring one meter long. This ancient predator lived ...

New research casts doubt on whether the thylacine's jaws were ever capable of grabbing and pinning down large animals in the ...

Add Yahoo as a preferred source to see more of our stories on Google. Tuna evolution after asteroid extinction unfolded slowly, as size and warm-blooded traits appeared millions of years apart.

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have used DNA and RNA from a preserved thylacine (Tasmanian tiger) head to reconstruct nearly the entire genome of the ...

Tasmanian tigers, otherwise known as thylacines, were about half the size scientists once estimated them to be. This development has suggested that the now-extinct marsupials were about the size of ...

Ichthyosaurs were the main predators of the oceans millions of years ago. Like reptilian dolphins with a mean streak, they grew between 10 and 43 feet long and had a long snout armed with viciously ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The extinct Megalodon, meaning "big tooth," was an apex ...

Scientists uncovered a rare shark graveyard in Egypt’s desert, including five extinct species that reveal a sea from the age ...

Tunas did not become large, fast and warm-blooded simply because an asteroid cleared the oceans of competing predators. Their defining traits appeared separately over tens of millions of years, ...