Preservation conditions might have some bearing. This recent news article suggests nematodes actually surviving after 46K years in permafrost. https://www.scie

Preservation conditions might have some bearing. This recent news article suggests nematodes actually surviving after 46K years in permafrost. https://www.scientificamerican.com/article/46-000-year-old-worm-possibly-revived-from-siberian-permafrost/ https://www.scientificamerican.com/article/46-000-year-old-w...