The electric eel is a type of knifefish found in the freshwater rivers and streams of 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 emit bursts of electricity ranging from 1 to 600 volts. This unique ability allows them to stun prey, navigate their environment, and communicate with other electric eels.