This catfish can deliver a shock strong enough to stun a grown man
The electric catfish of African rivers and lakes carries a specialized organ wrapped almost entirely around its body, capable of discharging roughly 350 volts to stun prey or deter predators. Ancient Egyptian wall art appears to depict the fish, suggesting people noticed its shocking ability long before anyone understood electricity. Unlike the unrelated electric eel, it generates its charge from modified skin cells rather than muscle, a separate evolutionary solution to the same trick.