Japan aquarium shows fish with ‘clear blood’

Apr 06, 2013 - Arun Kumar Singh |

The deep oceans have yielded many mysteries that have puzzled people for centuries, from the giant squid to huge jellyfish that look like UFOs. To that list add a fish with totally transparent blood.

The Ocellated Ice Fish lives in the freezing waters of the Antarctic Ocean, where it manages to keep its body doing all the things that other fish do, but with blood that is absolutely clear, researchers told AFP on Friday.
The reason, say experts at Tokyo Sea Life Park, is that the Ocellated Ice Fish has no haemoglobin, making it unique among vertebrates the world over.

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