It's a mystery why a swordfish stabbed a thresher shark to death, but it's possible they were competing for food.
The owl found in the Rockefeller Christmas tree isn't going back to his original territory. Here's why.
The T. rex and Triceratops were discovered in 2006, but this sale marks the first time scientists will be able to study them in detail.
Changes previously thought to be sex differences in a human relative are actually due to microevolution, a new study finds.
About 31,000 years ago, identical twin boys died, but not at the same time, a new analysis of their remains shows.
8,000 years ago in Indonesia, a child was buried without their leg and arm bones, a common practice at that time and place.
The discovery of nearly 90 shark teeth, largely from young sharks, indicates there was a shark nursery here 24 million years ago.
A Tyrannosaurus rex called Stan ended up on the auction block because of a lawsuit. Here's how it happened.