What is Life?

by Lynn Margulis & Dorian Sagan
New York: Simon & Schuster, 1995. 208 pages.

With eighty illustrations ranging from the smallest known organism to the biosphere itself, this exploration of the meaning of "life" has been praised by E. O. Wilson as a "new and spirited explanation ... likely to influence future introductions to biology." Introduction by Niles Eldredge.