Harvard Professor Emeritus E. O. Wilson has spent most of his 60-year career in pursuit of evolutionary biology. His studies of and writings about ants and their social organizations earned him the moniker "the father of sociobiology," as well as a a bevy of honors and awards, including two Pulitzer Prizes and a U.S. National Medal of Science.
Now, at the age of 85, Wilson has widened his intellectual curiosity beyond biology. Wilson's latest book has the audacious title "The Meaning of Human Existence." It's the second volume in a planned trilogy. Wilson says these days he's interested in what he calls the big questions.
"What are we? Where do we come from? Where are we going?"