This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Does the oyster have a heart and a nervous system
Uncle Ray answers eighth grade questions about oysters in the Nature section. He explains the oyster has three nerve ganglia and a simple heart, no true brain, gills for oxygen, and blood that carries carbon dioxide. he notes oysters lay many eggs, up to millions depending on species, with Maryland oysters around 16 million eggs per brood.
MENTIONED IN THIS ARTICLE
Paul Bartsch
United States National Museum
Maryland