A new study has found that each step of the marine food chain is clearly controlled by the trophic level below it – and the driving factor influencing that relationship is not the abundance of prey, but how that prey is distributed.

When mature male white-crowned sparrows duel to win a mate or a nesting territory, a young bird just doesn't get much respect.

Just published this month, new research shows how spiders eavesdrop on other males and copy their courtship signals as a likely means of stealing their mate.

New research examining how endangered Indonesian orangutans – considered a close relative to humans -- survive during times of extreme food scarcity might help scientists better understand eating disorders and obesity in humans.

Predicting the risk of extinction is a complicated task, especially for species that migrate between breeding and wintering sites.