Next » by Jeff Chiu - AP

Chris Andrews, chief of public programs and director of the Steinhart Aquarium at the California Academy of Sciences, holds up Balthazar, a red-tail boa constrictor, while throwing out the ceremonial first pitch to celebrate Earth Day before the San Diego Padres played the San Francisco Giants in a baseball game in San Francisco, Wednesday, April 22, 2009. (AP Photo/Jeff Chiu)