Since the beginning of time, Earth has created life and then wiped out most of it in catastrophic, ultra-destructive moments.

The human hand is the product of hundreds of millions of years of evolution, beginning with lobe-finned fish in the Devonian period. Early species like Tiktaalik developed limb-like fins capable of ...

The popular nursery rhyme This Little Piggy is an early childhood memory for many of us. It’s a poem that involves five little piggies, each corresponding to one of our fingers or toes. Kids love it, ...