Orangutan females prefer dominant, cheek-padded males

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.. The findings are published in Springer's journal Behavioral Ecology and Sociobiology.

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