Electric eel
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The electric eels are a genus, Electrophorus, of neotropical freshwater fish from South America in the family Gymnotidae, of which they are the only members of the subfamily Electrophorinae. They are
Electric eel skeleton, with the long vertebral column at top, the row of bony rays below
Lateral line pits in rows on the top and sides of the head and body. The pits contain both electroreceptors and mechanoreceptors.
Electric eel anatomy: first detail shows stacks of electrocytes forming electric organs. Second detail shows an individual cell with ion channels and pumps through the cell membrane; A nerve cell's terminal buttons are releasing neurotransmitters to trigger electrical activity. Final detail shows coiled protein chains of an ion channel.
Alessandro Volta
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Alessandro Giuseppe Antonio Anastasio Volta was an Italian chemist and physicist who was a pioneer of electricity and power, and is credited as the inventor of the electric battery and the discoverer
Volta battery at the Tempio Voltiano museum, Como
Volta explains the principle of the electric column to Napoleon in 1801.
Leopoldo Pollack, Aula Volta, 1787, Old Campus of the University of Pavia