Scientists reveal the surprising reason why women live longer than men
In the animal kingdom, males have evolved to develop conspicuous characteristics that catch the eyes of a female, such as large body size, colorful plumage or even 'weapons' such as antlers or large horns.
Although these evolved traits can increase reproductive success, researchers theorize that they come at the cost of shortening lifespan.
'In theory, those are very costly to produce and maintain, while they are also linked to a higher tendency of males to fight to monopolize females,' Dr Colchero told.
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