i'll join if you tell me where to find them outside. i remember asking a graduate who worked with them in lab and she hadn't a clue. well... she didn't know where to find hydras and planarias either, but...

You can find C. elegans worms feeding on bacterial blooms in decomposing fruits and stems. This review of the natural history of C. elegans by Lise Frézal and Marie-Anne Félix is excellent.

The Natural History of Model Organisms: C. elegans outside the Petri dish

To leverage the tools, resources and knowledge that exist for C. elegans so that we can study ecology, evolution and other aspects of biology, we need to understand the natural history of this importa...