Mollusks and cephalopods – Biology

By |2020-05-06T06:34:08-07:00May 26th, 2017|Biology|4 Comments

Evolution of mollusks: Slugs are a kind of mollusk. When did the first mollusks appear? Mollusks are animals like mussels, clams, snails and slugs. Their name means "soft", because mollusks don't have [...]