Chomp - Carl Hiaasen

Wahoo Cray has grown up with a zoo in his backyard - alligators, snakes, rats, monkeys, parrots, but it's his dad who's the unpredictable critter. When his dad takes a job with a reality TV show called 'Expedition Survival', Wahoo figures he'll have to do a bit of wrangling himself to keep his dad from killing the show's inept star Derek Badger, who insists on using real wild animals for his stunts. And Wahoo's acquired a shadow named Tuna, a girl who's sporting a shiner courtesy of her old man and needs a place to hide out. They've only been on location in the Everglades for a day before Derek gets bitten by a bat and goes missing in a storm. Search parties promptly get lost themselves. And Tuna's dad shows up with a gun...
It's anyone's guess who will actually survive 'Expedition Survival!'