Not only among men do we feed on our own kind.
|A group of Bacillus subtilis. The green cells have killed the red ones and are feeding on them.
© Science. Image by JE González-Pastor.
By killing their own kind and feeding on them, the bacteria with these genes manage to stay alive slightly longer, often to reproduce, and if things go wrong, create spores more easily.
(News updated June 19, 2003)