As more and more "historical" checklists are added to the platform, birds we've lost now mingle with those still hanging on.

In a darkened forest of central Colombia, a 2-foot-long mammal climbed a tree and paused to rest its “completely spiny” body.

Six zebras wore video cameras attached to collars, capturing the equines’ daily life. Sticking with giraffes may let the two species protect each other.

Jumping spiders—one of the largest spider families—get their name from the extraordinary jumps they make to hunt prey, to ...

To plan for the future, it's sometimes necessary to look to the past. To improve natural history collection and analysis in ...