"A worm called one of the world's "worst" invasive species by conservationists has been found in the United States for the first time, an international team of researchers announced on Tuesday.

The Platydemus manokwari, also called the New Guinea flatworm, poses a major threat to the planet's snail biodiversity, according to an article published in the scientific journal PeerJ. "It is considered a danger to endemic snails wherever it has been introduced," the report states.

The flatworm is thought to originate in New Guinea, but researchers say it has spread to Florida, New Caledonia, Puerto Rico, Singapore, the Solomon Islands, and the Wallis and Futuna Islands. Jean-Lou Justine, who led the research team, said that scientists had previously found the animal in other Pacific islands and in France."

Nick Visser reports for the Huffington Post June 23, 2015. [2]