SAN JUAN, Puerto Rico — For nearly two decades, no one had spotted the world's smallest-known snake. Some scientists worried ...

A snake so small it could be mistaken for a worm has been spotted in Barbados, nearly two decades after it was thought to ...

A snake believed to be extinct for nearly two decades and small enough to be mistaken for a worm has been rediscovered in Barbados, offering fresh hope for conservation efforts on the Caribbean island ...

A snake so small it could be mistaken for a worm has been spotted in Barbados, nearly two decades after it was thought to ...

The Barbados threadsnake (Tetracheilostoma carlae) was found hiding under a rock in central Barbados during an ecological ...

A new species of Corydoras is described from the rio São Francisco basin in northeastern Brazil, Minas Gerais and Bahia States. The new species is distinguished from most of its congeners by the ...