of the phylum Platyhelminthes, having bilateral symmetry and a soft, solid, usually flattened body, including the planarians, tapeworms, and trematodes; platyhelminth.
The flatworms, or Platyhelminthes, Plathelminthes, or platyhelminths are a
phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.
Flatworms - Ummm. They're Flat. We have to run out of steam there. But that's the
one obvious connection between all of the worms in this group. Sure we can ...
Flatworms, also called "planarians," are found just about everywhere there is
water. There are many different species of flatworms, but this page will focus on ...
Flatworm, also called platyhelminth, any of the phylum Platyhelminthes, a group
of soft-bodied, usually much flattened invertebrates. A number of flatworm ...
Introduction to the Platyhelminthes, the flatworms: life in two dimensions. One
page of text with a few photographs.
Flatworms look simple but they were the first animals with a distinct head with
Flatworms are the simplest of the worm groups. There are about 20,000 species
in this group. They are found many places and can be free living or parasitic.
For flatworms, "Who's your daddy?" is a loaded question. In a bizarre bout lasting
up to an hour, the first flatworm to stab and inseminate its mate becomes the ...