Thursday, 30 June 2011

Happy orangutans live longer in zoos

http://www.bbc.co.uk/nature/13925983

Happier orangutans are more likely to live for longer, according to a study. A team of researchers in the UK and US devised a method to measure the happiness, or subjective well-being, of captive orangutans. In a follow-up study seven years later, the scientists found that happier primates were much more likely still to be alive. The findings are published in the Royal Society journal Biology Letters.



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