The tiny multicellular microbes sprang back to life and produced offspring after 24,000 years.
If young people with cancer want to have kids later, they might have to pay out of pocket for things like egg retrieval, egg and sperm storage, and treatments like IVF.
"They are not a small part of the population, and they do want families, and they are interested in hearing about their options."
Doctors with patients in possession of ovaries, take note.
But scientists may have discovered a workaround.