The microbes of the world are constantly in competition, and are said to be locked in an evolutionary arms race. Their battles often involve host species as well. One example is the relationship ...

Everyone loves butterflies. The sun-loving insects are often festively colored and easily seen as they visit flowers. About 140 butterfly species have been found in Ohio, which may seem like a lot.

As humans drop off to sleep, the invisible world of moths comes to life. Across the planet, billions of the insects take flight on their nocturnal errands. Few places host more species than California ...