Tag Archives: caught in different oceans

Three New Species Of Warm-Blooded Fish Discovered

Scientists have found three more species of a fish that – despite what we are taught at school – are fully warm-blooded. The species in question are large deep-sea fish known as opah, and are found in many oceans around the planet. A few years ago, the opah made headlines when it was revealed to be the first fully warm-blooded fish species ever discovered. Living in the frigid waters of the deep ocean, it warms its blood by continuously flapping its fins to generate heat. This keeps the fish’s core temperature at about 4 to 5°C (7.2-9°F) >click to read<16:22