The hypothalamus is a small but critical region at the base of the brain that controls the autonomic nervous system, regulates body temperature, signals hunger and thirst, exerts hormonal control over ...

For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles ...

In probing whether there are basic sex differences in humans, a psychologist and a biologist agree to seriously disagree ...

Rats have long been notorious for spreading disease, but a new study reveals just how much human-altered landscapes can ...

Until now, it’s been very hard for scientists to establish a detailed timeline of the early evolution of bacteria.