In the distant fishing grounds of the East China Sea, fishermen often encounter a mysterious creature—the electric ray. When maintenance workers from deep-sea fishing fleets dive underwater, they sometimes accidentally touch an electric ray, resulting in instant numbness and trembling throughout their bodies. This is because electric rays are capable of discharging electricity; they possess special electric organs that can generate voltages as high as 220 volts. The African electric catfish can produce 350 volts, potentially stunning fishermen, while the South American electric eel boasts the highest power output, reaching up to 800 volts.
But how can these electric fish generate such powerful discharges? There lies an astonishing secret. The electric eel's discharge organs are located on either side of its tail's spine, shaped like long ridges. In contrast, the electric ray's discharge organs are distributed on the sides of its head and abdomen, resembling two flat kidneys made up of numerous honeycomb-like cells. During a single discharge, an electric ray can reach voltages of 60 to 70 volts, and during continuous discharges, it can exceed 100 volts, with the largest individuals potentially reaching around 200 volts and a power output of 3 kilowatts. These powerful currents not only help electric eels catch prey but also effectively evade predators, ensuring their survival.
The electric eel's ability to discharge electricity is truly remarkable, and the electric ray's discharge organs reveal the mysteries of nature. Deep in the ocean, these masters of discharge silently showcase the wonders of life, challenging the boundaries of human understanding.
