She tested the secret-keeping skills of a group of captive chimps living in a sanctuary in Uganda.
The researchers used video cameras to observe a troop of 26 wild chimps living in Bossou, Guinea, between 1995 and 2012.
For the past 3 decades, Boesch and his team have been watching the chimps living in Taï National Park in the Cote d'Ivoire.
Gorillas, orangutans, and other chimps live with him in the compound, and Caesar quickly becomes a leader of apes.
Well, unfortunately like most animals in Africa, the only place in the world where chimps live, their natural habitat has been greatly reduced.
Her chimps, which live in Tanzania, are often aggressive, sometimes engage in cannibalism, and even steal and kill others' infants.
The results are initially reassuring: the researchers estimate that nearly three hundred and sixty-two thousand gorillas and a hundred and twenty-nine thousand chimps still live in Western Equatorial Africa, higher figures than in previous estimates.
But volunteers will have to use their own ingenuity to ferret out "hidden chimps" who live in private hands.
Chimps now live in fragmented populations that have become different enough to qualify as four subspecies; the western, eastern, and Nigeria-Cameroon chimpanzees are much less common than the central chimpanzees.
For example, when humans cut down forests for farming or other uses, the loss of habitat forces chimps to live in close proximity to one another and to other groups.
