While we’re taught that mammals and birds are warm-blooded and fish and reptiles are cold blooded, this fish, known as the opah, defies that logic.
Jen Markham of Buzz60 has the scoop on this fish with the warm heart. The actual fish isn’t a new discovery, scientists have known about it for a while.
What is new though, is the fact that the opah, or moonfish, is the first ever fish that warms its blood, just like humans. Unlike most deep water fish, the opah moves very quickly, tipping off scientists that there is something different about this one.
Nick Wegner, a researcher at the National Oceanic and Atmospheric Administration, and lead author on the study of the fish said, “There has never been anything like this seen in a fish’s gills before.”