Natural selection can reverse evolution that occurs through sexual selection and this can lead to better females, new research shows.
Experiments show natural selection opposes sexual selection
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Gorillas, rhinos, lions and more will soon become extinct without immediate action
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Do you see a devil in this orchid?
Named for 'el diablo' himself, a new and extremely rare orchid species reveals a wicked heart.
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He's given a whole new meaning to "poached eggs."
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