Gynandromorphy is an extremely rare condition in which an animal is half male and half female. It's most visible in birds and butterflies.
This shy, strange-looking, nocturnal mammal has been poached nearly to extinction.
Despite the twelve volume herbarium she created, this seventeenth-century scientist earned little recognition.
Recently, the health of the honey bees has been a topic of some concern. But many scientists think we should actually be worrying about wild bees instead.
Once seasonal migrants, the iconic birds of prey are settling in the state.
A Sumatran tiger killed the female he was meant to mate with. Mating endangered species in captivity has long been a problem, if not always to such dramatic effect.
Why the argonaut, or paper nautilus, may be your new favorite cephalopod.
New findings shed light on how humans' ancestors interbred, but the Denisovans remain quite mysterious.
Humans and mosquitoes share a surprising amount of genes and have similar hunger controls.
Heatwaves have led to widespread deaths of animals like big-eyed tarsiers and flying foxes. Is there hope for species like this as temperatures rise?