WATCH: Doctor delivers baby gorilla

UK-based gynaecologist Professor David Cahill has delivered hundreds of babies during his career, but never a baby gorilla. 

Vets at Bristol Zoo called on Professor Cahill to perform an emergency caesarean on the mother, Kera, when she showed signs of pre-eclampsia. 

The historic operation, which took three hours, was very similar to a C-section in a human, said Professor Cahill, who is professor in reproductive medicine and medical education at Bristol University and a gynaecologist at the city’s St Michael