This would explain why the males of certain species, including our own, tend to be bigger and stronger than the females. It explains, too, such marvels of nature as the lion’s giant mane and the peacock’s flamboyant blue and green plumage. There don’t seem to be any reasons why lions need manes or peacocks need such cumbersome, fancy feathers except to attract the opposite sex.
When peacocks display, they look bigger and I wonder if this could frighten predators
