Zoology

The intrepid travelers are widely dispersed despite their sedentary lifestyle.

Nearly every evolutionary question can find an answer in mucus.

A parasite infection can make a leader of the pack—or a dead wolf.

An inside look at efforts to save rare and endangered species in the Dominican Republic.

A new film dives into the intricate lives of giant sperm whales.

How sperm whale sounds are like team uniforms.

Eleven billion crabs vanished. Is climate change really to blame?

Earth’s largest animals are singing in ever-lower tones, and nobody knows why.

New generations of insects are devouring Earth’s forests. Humans helped breed them—can we help stop them?

Far beneath the surface, an evolutionary paradox.

One question for Jonathan Balcombe, a biologist who studies animal behavior.

When sparks fly, new species follow.