For young chimpanzees, gambling on the possibility of a big payout is an attractive prospect, whereas adult apes are more likely to hedge their bets, a new University of Michigan study shows.
Risky business: Teenage chimps risk it all, like humans miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.