[edit] Platyzoa
Bedford's flatworm, Pseudobiceros bedfordi
The Platyzoa include the phylum Platyhelminthes, the flatworms. These were originally considered some of the most primitive Bilateria, but it now appears they developed from more complex ancestors.[8]
A number of parasites are included in this group, such as the flukes and tapeworms. Flatworms are acoelomates, lacking a body cavity, as are their closest relatives, the microscopic Gastrotricha
Wednesday, September 3, 2008
animal
Today's featured picture
An HDR panorama of Mont Blanc, as seen in the afternoon from the Rébuffat platform. Located between Aosta Valley, Italy, and Haute-Savoie, France, it is the highest mountain in the Alps and Western Europe and ranked 11th in the world in topographic prominence.
Photo credit: Nicolas Sanchez
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