Researchers from Japan have now found how a fish with transparent blood lives in the frigid waters of Antarctica at a depth of 3,300 feet.
The fish, called Ocellated Ice Fish, is unique because it lacks an essential protein in its body that transports blood in all vertebrates. The protein- hemoglobin- also makes the blood appear red in color, reports AFP.
The Tokyo Sea Life Park is the only aquarium in the world that has the Ocellated Ice Fish.
"Luckily, we have a male and a female, and they spawned in January," said Satoshi Tada, an education specialist at the center, reports Discovery News.