Slow mover.

Found lots of these slow movers climbing up the wall of our garden shed. I thought I check them out. Here's one thing I found out about them: Snails and slugs can affect any tender plants, lawn included. While they do feed on decaying plant matter they also feast on soft and succulent plant tissue. They demolish seedlings and can severely damage young shoots. It may be a surprise, but slugs can cause harm. The slimy mucus that slugs produce can cause excess drool or vomiting in pets like cats and dogs if ingested. Even worse, some slugs carry a parasite called rat lungworm which can transfer into your pet if they eat a slug.