The Flatworm... Presently, there are approximately 20,000 spec | Awesome Science
The Flatworm... Presently, there are approximately 20,000 species of flatworms! Flatworms usually feed on tunicates, small crustaceans, worms, and mollusks.
Their life cycle is not definite. However, some species are known to have lived between 65 to 140 days.
