The idea that we choose our mates based on their genes isn't news, but researchers in San Diego now have evidence that we might also be choosing our friends by their genetic endowment as well.
Carbon dioxide emissions appear headed towards levels that spawned 29-degree higher-than-today global temperatures more than 30 million years ago, reports a new analysis.
The supersized schnozzes of Neanderthals, humanity's vanished ancient cousins, have long attracted speculation that they were physical adaptations to Ice Age conditions.
There was just one way for developmental physiologist Andrew Gillis to investigate the inner workings of a neat bit of evolutionary engineering - by swimming in shark-infested waters with zero-visibility, groping in sticky muck for alien-like pods covered in muck.