natural selection

Koala Brain – Why Is the Koala the Dumbest Mammal? How Being Dumb Can Be Smart

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Is Koala dumbest mammal?

Whenever we travel to Australia, we love to observe that iconic marsupial, the koala (Phascolarctos cinereus).  Even though it is becoming more and more difficult to see wild koalas in their native habitat, we have managed to track them down by following the amazing roars of the male. The koala has one of the lowest … Read more

Why Are Male Animals More Beautiful and Colorful? Sexual Selection! With Photos

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A peacock is displaying its colorful feathers, showcasing sexual selection.

As a biologist, I find myself marveling at the amazingly complex rituals, colorful outfits, and tricky dance routines that various animals, and humans, have developed to attract a mate.  Join me as we view the world through the eyes of a biologist and look at the science of sexual selection. Animals have evolved specific physical … Read more