alaskacenters.gov

Z85Zo TIL North American glacier iceworms, native to Pacific coastal areas from Alaska to Washington, are the only annelid worms known to spend their entire lives in glacial ice, capable of completing their entire lifecycles at or below the freezing mark.They usually perish when temperatures reach 40F/4C.
OoJp1 TIL that parts of Russia and Alaska are only separated by 2.5 mi (4.02 km).
XyE8 TIL that despite common misconception, ice worms are a real species that tunnel through glaciers. If their body temperature exceeds 5 degrees celsius they melt.