“Sometimes redundancy has a way of showing up under certain conditions; they’re not truly redundant,” said Michael Snyder, ...

This class is all about the human sense of touch ... little hairs on the surface of the skin stand up, trapping a layer of warm air next to the body, helping to keep it warm.

A “weird” species of “walking” fish is helping shed light on how humans evolved to stand upright millions of years ago, according to scientists. The sea robin, a bony fish that lives at ...