Biologist Jackson Oz has been expelled from college and rejected by the scientific world for his wildly improbable theory dubbed HAC -- Human-Animal Conflict. His hypothesis is that animal behavior is changing -- and not for the better. From extensive research into the increase of animal attacks on humans, he's concluded that throughout the world, species after species are displaying hyper- aggressive behavior toward one particular animal -- man! And it isn't just wild animals, either, as reports of injuries from cats and dogs have been increasing, as well. But he can't get anyone to take him seriously. That is until the attacks continue to escalate.

As scientists come to grips with the reality that the human race worldwide is in danger of annihilation from the packs of roaming animals, they finally turn to Oz for help. But is it too late to figure out what is causing the problem and to rectify it in time to save mankind? And will the solution Oz comes up with work for the entire world?

James Patterson, in collaboration with Michael Ledwidge, gives readers a brilliantly new and inventive scientific perspective with ZOO. This gripping novel will keep you entertained first page to last, as its plotline borders on sci-fi, yet is also realistic enough to be possible. A fantastic book!