Shabani the Gorilla trying to approach Ai, one of his females. She's been largely uninterested in him in years, but he's been patient and keeps trying his best

On 31 August 1986, five-year-old Levan Merritt fell into the gorilla enclosure and lost consciousness. Jambo stood guard over the boy when he was unconscious, placing himself between the boy and other gorillas in what ethologists analyze as a protective gesture...

Photographer Christophe Courteau was taking snaps of mountain gorillas in the forest of Rwanda's Volcanoes National Park when the group's 250kg alpha male charged at him out of the blue. Amazingly, Courteau managed to get in one last shot of the incoming fist before the punch connected.