Many feminine animals are evolving to look extra engaging to mates

Within the northern pike (Esox lucius), females are bigger and infrequently extra brightly colored than males

blickwinkel/Hartl/Alamy

Sexual choice, a mechanism of evolution that may drive the looks of vibrant feathers and elaborate horns, is commonly assumed to function largely amongst males. However a contemporary evaluation of the info suggests it’s extra widespread amongst females than many researchers anticipated.

It was Charles Darwin who initially instructed that sexual choice is at work in animals. He emphasised that males usually compete in opposition to different males for females to mate with – which …

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