1 septiembre 2015
Unlike most mammals, mature male orangutans exhibit different facial characteristics: some develop large ‘cheek pads’ on their faces; other males do not. A team of researchers studied the difference in reproductive success between cheek-padded males and males without cheek pads. They found that those with cheek pads are significantly more successful in fathering offspring.
http://www.sciencedaily.com/releases/2015/09/150901113432.htm
