Gorilla goes on rampage after breaking out of Dallas Zoo

The scene at the Wilds of Africa exhibit was wilder than anything most zookeepers have witnessed in the jungle: a 153kg gorilla breaks out of its enclosure and goes on a 40-minute rampage through a forest, snatching up a toddler with his teeth and attacking three other people before being shot dead by officers.

Federal regulators are investigating the Dallas Zoo over the escape, zoo officials are trying to figure out how the gorilla managed to break out, and animal welfare advocates are questioning whether officers had to kill the animal.