The male that mates with a female after other males is most likely to father offspring.

Droughts and storms will become more intense in the coming century if levels of greenhouse gases in the atmosphere keep rising, new computer models suggest.

Scientists found a gold mine of bacteria almost two miles beneath the Earth’s surface where the Sun don’t shine.

Apprehensive rats got cancer tumors sooner in a new study that suggests human personalities might affect cancer risk.

A pair of black bear cubs got more than they bargained for when they went digging for food inside a dumpster.

Every fall the Clark’s nutcracker collects more than 30,000 pine nuts, buries them in caches within a 15-mile area, and then relies almost entirely upon its memory to find the caches throughout the winter in order to survive.