EarthOverfishing eats away at genetic diversity of fish Our hunger for fish is damaging their genetic diversity to a greater degree than expected, leaving at-risk species vulnerable ¿ìè¶ÌÊÓÆµ
LifeBreeding with Neanderthals helped humans go global When modern humans left Africa they lacked the genes to cope with local diseases. Sex with Neanderthals solved the problem ¿ìè¶ÌÊÓÆµ