True stonefish are found in the tropical waters of the Indo-Pacific and are notorious for killing people. Fortunately, this is an exaggeration. Only four deaths have been recorded throughout the world from stonefish stings and none of these were in Australia. Stories about stonefish are much more abundant than the fish themselves. Electric eels breathe air, the sign said.
Electric eels absorb oxygen through their mouths, which are rich in veins and arteries.
Besides containing profuse blood vessels, an eel's mouth is also lined with convolutions and projections, thus giving it a large surface area. The efficiency of the eel's mouth in obtaining oxygen had caused its gills, over evolutionary time, to disappear. Therefore, if you hold an electric eel underwater for more than a minute, it will drown. Electric eels are freshwater fish found in shallow streams of the Amazon region. Their abilities to breathe air and shock prey and predators make them some of the most unusual fish on the planet.