Editor’s note: This discussion contains terminology that may not be appropriate for sensitive readers and children. Parents are cautioned. We’re used to disagreement. For example, hailing from Maine, I was raised from the cradle to… 

After a very short exposure to the sickening bacteria, however, the worms began avoiding them in favor of other, less-deadly bacteria. The article from Cell discusses the roundworm Caenorhabditis elegans and its ability to transmit…