Grad student Jackson Oz has been noticing an uptick in violent animal attacks in this sci-fi bestseller. No one important will listen. He's dismissed as a crank. He travels to Africa to research the phenomenon firsthand. There he meets ecologist Chloe Tousignant. He would rather research Chloe but he has a serious girlfriend back home in the U.S. The lions snap (pun intended) him back to business.
The animal attack scenes are pretty exciting and following the search for the cause of the animal behavior is interesting. Zoo (2012) is a good thriller. I really liked it. I'm not sure how much of this book is James Patterson and how much is Michael Ledwidge, but Zoo is sometimes referred to as Zoo 1 because Patterson teamed up with someone else, Max DiLallo, to write Zoo 2, a short story sequel.