Animals

By doubling their entire genome, organisms can evolve extremely rapidly — or they can lose it all. New studies reveal how to survive the high-risk, high-reward evolutionary event.

By deciphering the molecular signatures of millions of mouse cells, Junyue Cao has found that aging is not haphazard wear and tear but rather a “remodeling of the cell society.”

New research is helping biologists understand how an overlooked aspect of coral physiology may affect their fate under climate change.

An organelle discovered inside a microbe inside a cow’s gut helps explain how livestock burps contribute to warming our planet.

In the 1960s, worm-training experiments and their strange implications captivated the nation. Columnist Claire L. Evans follows the neuroscientists who attempted to recapture the magic.

The bird retina is one of the most energetically expensive tissues in the animal kingdom, yet it doesn’t use the energy advantage of oxygen. New research finally explains how this is possible.

Off the coast of Japan, biologists netted a pea-size jellyfish with an unusual circadian clock — a chance finding that suggests there are likely more overlooked biological timekeeping mechanisms to be discovered.

Growing tissues can crack, break, and dissociate to form structures that can later withstand immense forces.

Researchers recorded the neurons that shape directional navigation as bats explored a remote island off the coast of Tanzania.