The starry night harlequin toad was lost to science for nearly 30 years until an indigenous community in Colombia permitted conservation biologists to visit its habitat in April.

The silver-backed chevrotain was undetected for decades, but local reports have led researchers to document the species on camera.

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

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.

Back from the brink of near-extinction, the Kirtland’s warbler population has grown and expanded its range.

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.