What animals have giant axons?
Unicellular giant axons are found in cockroaches, some annelids (such as Protula), and the medial giant axons of crayfish. Although most giant axons occur in invertebrates, the Mauthner neurons of fish and amphibians are examples of unicellular, myelinated vertebrate giant axons. Why are giant squid axons used in neurophysiology? The large axon in squid can…