(Penn State) The world's smallest species of snake has been discovered on the Caribbean island of Barbados.
The species -- which is as thin as a spaghetti noodle and small enough to rest comfortably on a U.S. quarter --was discovered by Blair Hedges, an evolutionary biologist at Penn State.
Hedges and his colleagues also are the discoverers of the world's smallest frog and lizard species, which too were found on Caribbean islands.
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