After a pet chimpanzee named Travis severely mauled a Connecticut woman in February, police wanted an explanation. Perhaps the ape didn't recognise the victim - who he knew well -because of a new haircut. Maybe Lyme disease or an anti-anxiety drug sparked the attack.rnWhat else could explain such savage behaviour from a creature who shared 98.4 per cent of his DNA- and the odd glass of wine -with his human keepers?
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