Why do you have five fingers? Why not ten, or twenty, or one? Why do so many animals have five fingers? Five seems to be the perfect number for most hands. Oddly, the first vertebrates to come onto ...

In his beguiling poem “Connoisseur of Chaos,” Wallace Stevens recalls a past era when religion was meant to explain everything, “when bishops’ books / Resolved the world.” But, as he reminds us, “we ...

Discover interesting facts about how evolution works, the different patterns that can emerge from evolution, how quickly organisms can evolve, and whether evolution is a random or ordered process When ...