Why Is It?
Born Knowing
Some animal babies know how to take care of themselves from day one. One listener asks why this …
Plant Sunscreen
One listener asks how plants protect themselves from damaging rays from the sun.
Animal Laughter
People laugh in many different ways. But can animals laugh at all? Science Reporter Bob Hirshon …
Staying Awake
Drooping eyelids? One listener asks about the best way to stay alert.