Discoveries of more complete remains of cartilagenous fishes have shed new light on the prehistory of sharks and their relatives.
Caves are among the predators’ favorite spots.
The brain doesn't much care whether an experience is real.
Humans will never win a sprint against your average quadruped. But our species is well-adapted for the marathon.
Hear author Xiaoming Wang interviewed by Vittorio Maestro, Editor in Chief of Natural History. (MP3, 17 minutes)