Previously, people thought that the electric eel's discharge was mainly for survival, because the electric eel wanted to catch other fish and aquatic organisms, and discharge was a means for it to obtain prey.
A biologist at Vanderbilt University in the United States recently found that the electric eel's discharge behavior is no longer a simple survival need, but tracks its prey through the current it emits, which is similar to the ultrasonic wave emitted by bats. ?
In order to answer this question, Kenneth Catania, a professor of biology at Vanderbilt University who is in charge of this research, simulates the movement of real prey by exposing electric eels to dead fish that twitch when electric current passes through their bodies. The research shows that the electric eel not only has a powerful "stun gun", but also has a set of high-precision "radar device". Once the target is found by electric feedback, the electric eel will emit a series of high-frequency and high-voltage to accurately guide its attack.