Deadliest Zoo Animals Tigers are responsible for more attacks on zookeepers than any other big cat. Myth Fact None Gorillas are aggressive and frequently attack zoo visitors. Myth Fact None Hippos are one of the deadliest animals in the wild, but they rarely attack in zoos. Myth Fact None Zebras are docile and safe to interact with in zoos. Myth Fact None Elephants have been involved in multiple fatal zoo attacks on trainers and handlers. Myth Fact None Time's up Most Popular Most Popular