Which animals can generate and use electricity?

The answer

The electric eel (Electrophorus electricus) generates up to 860 volts from three specialized electric organs comprising 80% of its body - enough to stun a horse. In 2019, researchers discovered two additional eel species, with E. voltai producing the highest voltage of any known animal. Electric rays (Torpedo) produce 220 volts to stun prey on the seafloor. The elephant nose fish uses weak electric fields for navigation and communication in murky African rivers, processing signals in a brain that consumes 60% of its oxygen - proportionally higher than humans. The platypus detects electric fields from prey muscle contractions through 40,000 electroreceptors in its bill, hunting effectively with its eyes completely closed underwater.