Life on Earth started in the oceans. Sometime around 475 million years ago, plants began making their way from the water onto the land, and it took another 100 million years for the first animals with ...

Human evolution has long been tied to growing brain size, and new research suggests prenatal hormones may have played a surprising role. By studying the relative lengths of index and ring fingers — a ...

Animal eyes look strange to us for a reason. Different pupil shapes, orientations, and structures allow animals to see the ...

Run? By the time your brain registers the hiss, the moment has already passed. Research shows that certain snakes, particularly vipers, operate on a b.