congenitaldisease:

On 16 August, 1996, a 3-year-old boy fell 18 ft into the gorilla enclosure at Brookfield Zoo and was knocked out. Unconscious, with a broken hand, and a gash to his face, visitors began to scream as they thought the boy would be attacked by the gorillas. Instead, 8-year-old western lowland gorilla, Binti Jua, picked up the young child and carried him 59 ft to the entrance where zoo staff could retrieve him. She growled at other gorillas who tried to get near the boy. This is a clear example of 

apparent altruism and empathy in animals.