I never felt a need to manipulate my career from the outside - try to be someone I wasn't to get ahead.

Zynga made social gaming and play a worldwide phenomenon, and we remain the industry leader.

Zoos are becoming facsimiles - or perhaps caricatures - of how animals once were in their natural habitat. If the right policies toward nature were pursued, we would need no zoos at all.

Zoologists study the behavior, physiology, classification and distribution of animals, whether they are living or extinct.