Magazine article from our research archive:

Getting a head in the world

FINDINGS

When the naidid worm reproduces, it grows a new front for its back half and a new tail for its front.

We peer down at the tiny worm wriggling under the lens of our microscope. Four black eyes peer up at us: two from the creature's head and two from its ... other head. Two-headed worms are common in our lab, and they're common outside the lab as well. If you've ever scratched the surface of a slimy rock in a pond or stream, you may even have taken one of these miniature beasts home with you, tucked away under your fingernail.

The bizarre worms we study are called naidids. They are members of the phylum Annelida, the group that includes segmented worms such as leeches, tube worms, ...

Related newspaper, magazine, and journal articles:

See all results. Or, try our Advanced Search.

Newsweek Harper's Magazine The Washington Post Chicago Tribune Crain's Chicago Business PRNewswire Pediatric News The Nation Advertising Age The Economist (US) A FREE trial gives you access to over 60 million articles! Access over 3,500 publications with a FREE trial!