Creepy! Creepy!

We have a planarian invasion in the backyard. No pictures with my camera (they're nocturnal), but you can look at examples here. They're called Bipalium kewense Moseley or the land planarian or arrowhead flatworm. They're becoming common enough for schools in Louisiana to use for those head-splitting experiments (split the head with a razor blade, and the halves regenerate to form two heads). I saw one eating  a living earthworm on a slug hunt last week, and even I got grossed out. EEEEW! It is a long, ribbon-bodied thing with a flat, semicircular "head". No eyes, no mouth in the head. Cut the head off, it gleefully grows another. Cut it in pieces, and each piece becomes a new flatworm. You must kill them in alcohol or soapy water, or by spraying, if you encounter them and you like earthworms. They came here from Southeast Asia in potted plants, and they thrive in the Southern US or in green-houses. Cold winters with frozen soil can kill them, but our soil never really freezes. They like high humidity, so dry climates are safe. But they can devastate the beautiful iridescent earthworms in my garden. I'm collecting the dastardly creatures with a skewer (making sure to get all the body, and not let the tail snap off to get away), and drowning in soapy water as I do the slugs. Hope it works- these are somewhat more primitive than slugs. Creepy.