Evolution is always happening — so why can't we see it? A biologist explains the timescale problem, election pressure, and ...

Although modern crocodiles, alligators, caimans and gharials are restricted to the tropics, their fossil record tells a very ...

(Volodymyr Yakimchuk/Creatas Video+/Getty Images Plus) A seismic shift in the selection pressures acting on humans may have ...

Hundreds of hominin fossils reveal that human body size remained stable for ages before a sharp increase in early members of ...