Measuring around 10 cm, with a diameter comparable to that of a cooked spaghetti, the Barbados Threadsnake (Tetracheilostoma carlae) is by far the smallest snake in the world.
Spotting a Barbados threadsnake for the first time, you could swear it was an earthworm. They are actually comparable in size and diameter, with the largest specimen ever found measuring only 10.4 centimeters, and are also blind. They also typically weigh under one gram and are small enough to coil on an American quarter. The species was officially discovered slithering beneath a rock near a patch of Barbadian forest in 2008 by evolutionary biologist S. Blair Hedges, but little has been discovered about its ecology and behavior since.
