I think this is an okay book it wasn't the greatest but I still think it is good. I would rate it 3.5 stars out of 5. Belly up really had a lot of funny and exciting parts it started pretty well with the monkeys and the water balloons. The ending was not so great though. It was about a person named Teddy Fitzroy who is trying to see how the mascot of the Fun-jungle (Henry the Hippo) suddenly died. The setting is in the zoo (fun-jungle). The people were also treating the animals bad by giving them trash as food. It is a very good fictional book. I would recommend it to animal lovers.