Hey, did you hear that scientists have found the first warm blooded fish species Oba's live up to a thousand feet beneath the ocean surface in very cold dimly lit waters, reddish orange with white speckles and some species can grow as large as six feet in length and six hundred pounds Zeus a fish story. I, oh, I suppose it sounds like one done very little is known about Oprah's because they live so deep in the ocean and are rarely caught. Scientists did. No, they were predators that eight squid krill and small fish. They wondered how otas could catch such fast moving prey, but they didn't expect that warm blooded metabolism would be the reason for their hunting success or other warm blooded fish, some sharks and tuna have what's known as regional endothermic or limited warm blooded nece. It allows them to stay active in colder depths. But Oprah's are unlike all other. Fish. We've studied or scientists sure they're warm-blooded Noah fisheries biologist discovered that Oprah's had unusual guilty issue. The blood vessels carrying warm blood into the fish's gills wind around those carrying cold blood back to the body core. Engineers call this a counter current heat exchange silver. I don't lose as much buddy heat into the cold water from their gills, exactly. They also found that Oprah's constantly flap their fins which generates body heat temperature measurements found that they were able to stay about forty one degrees Fahrenheit warmer than the surrounding. Chilly waters. Not very warm compared to humans ninety eight degrees. No. But it gives them a competitive edge as hunters, which is all that matters moment of science comes from Indiana University. There are thousands more moments of science on our website at a moment of science dot org. I'm ya'll Cassandra again dog Wes.