Leaps In Evolution

Five hundred million years ago, our eyeless ancestral creatures suddenly developed eyes, a dramatic leap in evolution. What enabled our ancestors to e...

Human mothers raise fetuses inside their wombs and breast feed their babies for a long time after birth. What made humans evolve so that we raise our...

Homo sapiens are the only creatures on earth privileged with high intelligence that allows us to be civilized. What evolutionary odyssey did we take t...