Tag » Mollusk

A Sea Slug Story

If you watch science news, or if you happen to have spent a lot of time researching slugs in the last few days like me, you might have noticed a few stories with a titles something like, “Toxic Sea Slugs Invade Argentinian Coastline.” A few days ago I wrote about terrestrial, predatory slugs and how they fit into our understanding of gastropod evolution. 1.474 more words

Natural History

Testacella, the Shelled, Carnivorous Slugs

Although we like to imagine that slugs are, by and large, peaceful herbivores, the truth is they are highly diverse and occupy a wide range of niches. 1.092 more words

Natural History

Blue Mussel

Mytilus edulis, the Blue Mussel, is a bivalve mollusk popularly prepared as seafood. They anchor themselves to submerged surfaces by secreting an adhesive protein that hardens into tough byssal threads. 15 more words


Littorina littorea, the Common Periwinkle. These coin-sized snails are found all over the Atlantic intertidal, scraping algae from the rocks with their radulas, a tiny comblike organ covered in miniature teeth common to all snails.

Day 156 Que Es Esto #4

¿Que Es Esto?

Jan 10

I found this creature ‘crawling’ under a rock in a tide pool. I remembered it’s name from childhood, but I was completely wrong in my memory about ‘who they were.’ Do you know? 65 more words