To help create better conservation and management plans, researchers are measuring how marine organisms move between habitats and populations.

The discovery of ancient clades of brittle stars at the bottom of the Pacific Ocean adds to concerns that commercial exploitation of the area could destroy numerous taxa before they’ve even been identified.

Geography plays a role in how the small mammals adapt to environmental changes.

Population reductions in species such as sparrows and blackbirds reflect a concerning pattern of declining biodiversity across the continent, researchers find.

Populations of the two-foot-long amphibians are declining across North America. Scientists are struggling to find out why, before it’s too late.

Scientists hope to breed the species in captivity because their habitat has nearly disappeared.

The fish’s undiscerning palate might make more of the lake habitable to the species than once thought, according to a new study.

Sharks and rays can get entangled in abandoned fishing gear, leading to injuries or death.

The most extensive global survey of plant extinctions to date reveals cause for concern.