Pachyderm, a term formerly used in biological classifications of the elephant, rhinoceros, hippopotamus, tapir, hyrax, and pig. The word, now used chiefly as a mock-scientific synonym for elephant, comes from the Greek for “thick-skinned.”The elephant is considered a pachyderm.
Until now, no one has documented a definite case of chimpanzees using tools to hunt in the traditional sense. Find out what a new study on chimpanzees may reveal about human evolution.
It's scary enough to imagine a shark's toothy jaw snapping at your half-submerged body in the ocean. But the actual impact of its massive mouth clamping down? Surprisingly wimpy.