The less time a tick has to feed, the less saliva it can pump in, and the fewer tricks it can use to tilt the odds. For ...

Paleoanthropologist Ella Al-Shamahi travels the world digging into the origin of Homo sapiens in a five-part BBC series debuting Wednesday on PBS.

Like humans, fish pee to regulate their bodily fluids. Urination is a vital physiological process that helps humans to ...