An infection, not bad genetics, are likely the reason for Sue's weird teeth.
The discovery of two small dinosaurs with bat-like wings a few years ago was a paleontologist's dream.
Here's a look at one of the most diabolical and invasive insects: the murder hornet, or the Asian giant hornet.
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.