Scientists describe the number of vertebrate species experiencing population declines as “biological annihilation.”

The iconic mammals have been declining in number for decades and could face extinction if conservation measures are not enacted.

What researchers are learning as they sequence, map, and decode species’ genomes

Watch footage from the public dissection of Marius, the young giraffe at the Copenhagen Zoo who was ultimately fed to predators at the facility. (CAUTION: GRAPHIC IMAGES)

A new fossil species helps resolve the evolutionary relationships of an extinct group of ruminants.

A round-up of recent discoveries in behavior research

A giraffe’s spots can give away its years.