
It was purposefully introduced to many countries due to its efficiency in killing snails, who form part of the flatworm’s diet, in an effort to control certain species of snails that were damaging the ecosystem, such as the Giant African snail.

Regardless, the New Guinea flatworm, despite what many articles on the web will call it, is completely harmless, at least in terms of its direct impact on human health and safety.Īs the name suggests, the New Guinea flatworm hails from the island of New Guinea, which is an island just north of Australia.

Luckily for our reader, the flatworm he found in his toilet is on the smaller side, as these worms can measure up to five inches in length. The New Guinea flatworm is a carnivorous, terrestrial flatworm that has had people all over the United States in a frantic state since its introduction - as an alien species - to the country. Despite that, his friend got it right on the nose, as this creature is indeed a New Guinea flatworm. After putting the worm in a glass (as seen in the photograph above), it proceeded to climb up the sides, and he reports that when the worm is submerged in swirling water, it “hangs on tight to the glass.” Our reader adds that though his friend is a biologist, he is not a worm expert. For context, our reader found this worm-looking fellow in his toilet after flushing it.
