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Why are male animals more colorful?: Media

Well, some male animals, at least. In most cases, the reason is sexual selection.

Images

Mallard (Anas platyrhynchos)
Sexual dimorphism displayed in the feather colors of mallards. The male is easy to...
© iStock/Getty Images
Male and female blue dasher dragonflies
© Wirestock/Dreamstime.com
Male and female guppies
© Hadot/Dreamstime.com
Male and female sand lizards
© Matunka/Dreamstime.com
Male and female mandarin ducks
© Thomas Egger/stock.adobe.com