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.

Both bobcats and the state’s namesake panther, an endangered species, have been spotted with signs of the condition.

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

Mycale grandis teams up with microbes housed inside it to gather nutrients.

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

External satellite transmitters fitted to the animals’ heads track their movements and habitat use.

Bleaching killed 34 percent of the island’s reefs between 2013 and 2017, a study finds.

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