Varied species of catfish can be found around the globe. They are divided into 33 families, 400 generas, and more than 3,000 ...

Fresh analysis of records for more than 30,000 species now points to a single thread that stitches Earth's bioregions ...

A fascinating new study reveals how two of Earth’s established continents may constitute one whole landmass in itself.

From their odd appendages to their unsavory hygiene, certain animals suffer an image problem. But their awkward attributes ...

An international genomic study unveiled the longest documented prehistoric migration in human history, tracing early modern ...