The cheery spring songs of birds may be disguising hunger pangs. Last summer’s harvest of seeds, berries were consumed in the winter.
Human mothers don’t hold the patent on good parenting. Good mothers are found in the wild, too. Meet eight of them.
In the U.S., there are three species of flower-eating bats, 44 species of insect-eating bats. Persistent myths give a false impression they’re dangerous.
Do worms have a head? How long do they live? Do they freeze in winter? Why are the slimy? More.