"Better Together" will illustrate a story about bird personalities and cooperation when the book Great Adaptations is published in the fall. James Munro/Courtesy of Breadpig, Inc. hide caption

itoggle caption James Munro/Courtesy of Breadpig, Inc.

A man reaches for a wooden cross in the sea during an Epiphany ceremony in the Greek port of Thessaloniki on January 6, 2011. Sakis Mitrolidis/AFP/Getty Images hide caption

itoggle caption Sakis Mitrolidis/AFP/Getty Images