scientists find a glowing fish with antifreeze in its veins Beneath Greenland
Scientists drilling deep into an iceberg off Greenland have discovered a fish with glowing green antifreeze coursing through its veins.
The juvenile variegated snailfish (Liparis gibbus) contained the “highest expression levels” of antifreeze proteins ever reported, a new study found.
Similar to how antifreeze helps to regulate the temperature of a car’s engine in extreme conditions, certain species have evolved to have similar protection, especially those living in frigid habitats such as the polar waters off Greenland.
Antifreeze proteins were first discovered in some Antarctic fish nearly 50 years ago, according to the National Science Foundation(opens in new tab).
Unlike certain cold-blooded species of reptiles and insects, fish are unable to survive when their bodily fluids freeze, which can cause grains of ice to form inside their cells and essentially turns them into fish Popsicles.
“The fact that these different antifreeze proteins have evolved independently in a number of different — and not closely related — fish lineages show[s] how critical they are to the survival of these organisms in these extreme habitats,”John Sparks, a curator in the AMNH’s Department of Ichthyology
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.”
For more on the Glowing Snailfish visit Live Science
Don’t forget to share “scientists find a glowing fish with antifreeze in its veins Beneath Greenland”