A universally fatal prion disease was recently found in Wisconsin, while a hemorrhagic virus is sickening deer elsewhere.
The leopard, named Baya, was only two years old, and zookeepers hoped she would be part of a breeding program for the species.
Scientists are calling it a “once-in-a-generation” discovery.
The discovery suggests dinosaurs had surprisingly small geographic ranges. The question now is: why?
Preliminary veterinary tests suggest the bird is healthy and uninjured.
The male humpback whale had a large chunk of metal stuck inside its guts and various injuries.
A Steller’s sea eagle escaped from the National Aviary last Saturday and has been exploring Pittsburgh ever since.
Structures resembling a nucleus and chromatin turned up in the fossilized cartilage of a turkey-like dinosaur.
The eagle escaped its enclosure at the National Aviary under mysterious circumstances.
Despite being incredibly metal, the ankylosaur's spikes were made of bone.
The crustaceans’ anatomy divulges little of their age, so scientists checked their DNA.
Attacks by bears on mountain goats are common—but the horned herbivores have the means to defend themselves.
We do it with our arms, so what’s so surprising about dinosaurs putting some pep in their step?
Candiru crave blood, but the strange fish may use their hosts in more ways than previously known.
Researchers are seeking volunteers for an experiment that will mainly involve watching cat videos.
Like a peacock with its dazzling plumage, this Cretaceous bird had fancy tail feathers that likely served to attract mates.
These tigers often appear more black than orange, and now scientists know why.
Winning entries to this year's Nikon Small World Competition include hyper-close-up images of table salt, tick heads, and slime mold.
Dental cavities were surprisingly common among early primates living 54 million years ago.
For its time, Titanokorys gainesi was an absolute unit.
