W hile North America might have the largest population of pet cats, it’s home to only six native species of wild cats.

"It is amazing to imagine these giant flying squirrels gliding over rhinos and mastodons," said paleontologist Joshua Samuels.

Researchers have identified a giant flying squirrel fossil from a cache of unusual animal remains dug out of an ancient sinkhole in Tennessee 25 years ago. The fossil sheds light on how flying ...

No new human cases of avian influenza have been reported, and poultry infections are low so far in March. But infections in cats are continuing, and new research is raising concerns about the virus ...