Monkey clue to male sex appeal

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Rosy cheeks seem to be crucial in the dating game
, for monkeys at least.

Females of a common primate, the rhesus macaque, prefer males with red faces, a study has shown.

It signals high levels of testosterone which, in many male animals, mean a healthy immune system and good genes.

A rosy glow might also act as a similar cue in humans, say British researchers.” BBC