Photo by Cassie Matias on Unsplash
True of False: Fish can produce their own antifreeze.
Notothens or Cod Ice fish, live in sub-zero waters of the Arctic and Antarctic and produce a simple protein made of 1 threonine and 2 alanines that continually repeat.
These protein units stick to ice crystals preventing them from growing and voila! you have fish that can produce antifreeze.
Researchers Chi-Hing and Christina Cheng had been studying the Antarctic Ice cod for years when they discovered that another population of Cod in the Arctic had seperately developed the same ability.
If you would like to learn more take a look at the full article:
https://phys.org/news/2019-02-arctic-fishes-reveals-birth-genefrom.html