From the Book - First Scribner hardcover edition.
Ball-bouncing octopuses : what is play?
The Kalahari meerkat project : The hypotheses of play
Tumbling piglets and somersaulting monkeys : training for the unexpected
"Let's go tickle some rats" : the neuroscience of play
Courtly canines : competing to cooperate and cooperating to compete
Wood thrush songs, herring gull drop-catching, and bowerbird art : play as the roots of culture
Memes and dreams : dreaming as playing without a body
Innovative gorillas : the surprising role of play in natural selection
Epilogue: Play, life, and everything.
