Researchers in Wyoming have discovered a pterosaur trackway dating to 145 million years ago.
A tough exoskeleton in ironclad beetles protect them against piercing and crushing, and scientists recently uncovered the unusual interlocking structures that strengthen the insect's hard shell.
Filmmakers spent three years following pandas in China's Qinling Mountains, capturing never-before-seen footage of males competing over females.
The discovery of nearly 90 shark teeth, largely from young sharks, indicates there was a shark nursery here 24 million years ago.
A rose-breasted grosbeak that was captured in a Pennsylvania nature reserve is a bilateral gynandromorph — male on the right side and female on the left side.
Pus caterpillars have among the most venomous stings of any animal in the United States. And they're having a boom year in Virginia.
To help moles fight in the brutal underground world, evolution has granted the female mole a generous dose of 'roid rage' by tacking some testicles onto her ovaries.
A Tyrannosaurus rex called Stan ended up on the auction block because of a lawsuit. Here's how it happened.
Tasmanian devils have been reintroduced to mainland Australia, where they haven't been seen in the wild for millennia.
Marine biologists have discovered an enormous great white shark they're calling the "queen of the ocean" off the coast of Nova Scotia.
A new study evaluates massive Megalodon alongside all sharks in the lamniform group — living and extinct. Even among its extinct relatives, Megalodon was unequalled in length and mass.
Ice Age manatees either summered in Texas or lived there year-round, raising new questions about the environment off the coast of the Lone Star State during the Pleistocene.