Peacocks have evolved to have long, colorful feathers simply because peahens have evolved to find them attractive.

Maratus volans, is a species in the jumping spider family, belonging to the peacock spider genus.

According to evolutionary psychologists, such displays of blatant benevolence are the human equivalent of the male peacock s tail.

So I'm currently working on a book, which plays with both senses of the word, as I explore some of my own ideas and inquiries in a visual display of rather peacock like grandeur.

It is found in moist and dry deciduous forests, but can adapt to live in cultivated regions and around human habitations and is usually found where water is available.

Hand axes mark an evolutionary advance in human history tools fashioned to function as what Darwinians call fitness signals that is to say, displays that are performances like the peacock's tail, except that, unlike hair and feathers, the hand axes are consciously cleverly crafted.

Just as the peacock signals his strength and fitness by displaying his enormous tail a sheer waste of resources from a practical point of view so costly public acts of benevolence signal to potential mates that one possesses enough resources to give so much away.