This helps protect the tadpole-like fish from the cold.
Scientists drilling deep into an iceberg off Greenland have discovered a fish with glowing green antifreeze coursing through its veins.
"Antifreeze proteins stick to the surface of smaller ice crystals and slow or prevent them from growing into larger, and more dangerous, crystals," study co-author David Gruber, a research associate at the American Museum of Natural History and a distinguished biology professor at City University of New York's Baruch College, told Live Science in an email."Fish from both the North and South Poles independently evolved these proteins.
Snailfish produce antifreeze proteins"like any other protein and then excrete them into their bloodstream," Gruber said. However, snailfish appear to be"making antifreeze proteins in the top 1% of all other fish genes."
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