A 25-year-old Canadian primatologist entered Borneo’s remote wild swamps with her husband in 1971 to study orangutans; a

A 25-year-old Canadian primatologist entered Borneo’s remote wild swamps with her husband in 1971 to study orangutans; after 40 years of research, she found that they give birth just once every 7.7 years and documented 400 types of food in their diet