A happy life is a long one for orangutans
Wednesday, June 29, 2011 - 08:30
in Paleontology & Archaeology
New research has shown that happier orangutans live longer which may provide insight into the evolution of happiness in humans. Researchers asked keepers who work with orangutans to answer questions about happiness on the animals' behalf. Orangutans which were scored as happier by their keepers were more likely to live longer.