The bright flowerlike symmetry of Australia’s northern jeweled orb-web spider lures in hungry prey.
The discovery raises hopes that chimps can adapt to threats such as climate change.
Finding suggests "megapredators" may have been more common in Mesozoic Era than previously thought.
Alligator blood inhibits a key toxin in the venom of vipers such as rattlesnakes and copperheads.
A new song type originated in western Canada and then spread East, replacing the sparrows’ traditional song.