The Greenland Shark keeps its cells in the refrigerator its whole life: https://en.wikipedia.org/wiki/Greenland_shark https://en.wikipedia.org/wiki/Greenland_sh

The Greenland Shark keeps its cells in the refrigerator its whole life: https://en.wikipedia.org/wiki/Greenland_shark https://en.wikipedia.org/wiki/Greenland_shark I imagine the internal temperature of the Great Basin bristlecone isn't that high either. However, see another thread on this article where someone mentions Naked Mole Rats, warm-blooded animals with long lifespans.