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Uploaded on Aug 11, 2008
Life in the life oF Gorillas at the Basel zoo Animals kept in captivity are safe from extinction, but their social behaviour often changes: three years ago at Basel Zoo a young gorilla male became a father at the age of six. The unusual event -- in the wild fatherhood never occurs before 12 -- was proven by a paternity test earlier this year. (swissinfo, Raffaella Rossello)