ex-royal's picture

Great Black Slug

Observed: 17th July 2012 By: ex-royalex-royal’s reputation in Invertebratesex-royal’s reputation in Invertebratesex-royal’s reputation in Invertebratesex-royal’s reputation in Invertebrates
038
Description:

I had no idea slugs were cannibals.

Identifications
Species interactions

No interactions present.

Species with which Great Black Slug (Arion (Arion) ater) interacts

Comments

martinjohnbishop's picture

Apparently it is well documented

For example http://snailsandslugs.wordpress.com/tag/cannibalism/
Many slugs are feeders on detritus rather than green plants. They eat dead slugs and any other dead stuff lying around. I presume the prey in the photo had been killed previously, perhaps by being stepped on.

Of course, there are predatory slugs Testacella spp. that eat earthworms http://bogleech.com/bio-gastropoda.html