Meltwater from a glacier lake outburst is flooding Juneau, Alaska. Such events are likely to happen more often as climate ...

Ancient teeth found in Ethiopia belong to a never-before-seen species of Australopithecus, a branch of human ancestors ...

Spiders from the Uloboridae family, usually just a few millimeters long, have puzzled scientists because they seemed to lack venom—a substance that is widespread among spiders and “really linked to ...