No one had spotted the world’s smallest known snake for nearly two decades. Some scientists worried that maybe the Barbados threadsnake had become extinct.

Until this spring, the world's smallest species of snake was considered lost to science, and quite possibly extinct — until Connor Blades and his colleague found one under a small rock in the forest.

A snake believed to be extinct for nearly two decades and small enough to be mistaken for a worm has been rediscovered in