The electric eel is a type of knifefish found in the freshwater rivers and streams of the Amazon Basin in South America. It can grow up to 8 feet long and is known for its ability to generate electric shocks, which it uses for hunting and self-defense. Electric eels have specialized cells called electrocytes that produce electricity. They can deliver shocks of up to 600 volts, which can stun prey or deter predators. Despite its name, the electric eel is not a true eel but is more closely related to catfish and other knifefish.