Young readers can discover how clever male baboons intercept mating calls to sneak a secret rendezvous with a female and how whales use other whales' echolocation to zero in on a tasty snack. They'll also learn why knife fish use electricity to cloak themselves from predators and how sneaky gray squirrels build fake stashes of food to doublecross eavesdropping birds. Whether it's a rattlesnake ambush or a canary cage match, the stakes in wild spy games are always high.