The release of gray wolves in Yellowstone decades ago still stands as one of the few examples of a predator reintroduction, and the lessons learned continue to be debated. New projects aim to do it again.

Watch a predaceous diving beetle dine on a tadpole.

Distantly related, lookalike Heliconius species arrive at the same appearance using the same few genes, but regulated differently, according to recent studies.

This caterpillar secretes acid to get past the defenses of the plant on which it preys.

Moths’ scales vibrate in the frequency range of bats’ echolocation calls, perhaps helping the insects to avoid predation.

Nest predation of shorebirds that raise young in the Arctic are up threefold since the mid-20th century, and climate change may be to blame, according to a study.

In an unusual evolutionary twist, local stick spiders have come up with an almost identical repertoire of color morphs in multiple locations.

The bombardier beetle forced its devourer to vomit it out by releasing explosive, toxic chemicals.

From fish harvests to cottonwood forests, organisms display evidence that species change can occur on timescales that can influence ecological processes.