Rat testicle cells make sperm after being frozen for 23 years
https://www.newscientist.com/article/2319298-rat-testicle-cells-make-sperm-after-being-frozen-for-23-years/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
Rat testicle cells make sperm after being frozen for 23 years