Researchers discovered live nematodes after collecting and thawing samples of permafrost material that had been frozen for 42,000 years (roundworms). More than 300 frozen soil samples of various ages and places were dug out from the permafrost around the Arctic by a group of Russian biologists and brought back to their lab in Moscow for further examination. They then … [Read more...] about Scientists have brought a 42,000-year-old worm back to life