First primate born using frozen testicle technique – National Geographic

On January 15, 2018, doctors at Oregon National Primate Research Center performed a routine ultrasound on a rhesus macaque. Everything looked normal; the baby’s head floated to one side, its developing spine trailing away like a zipper.However, this baby was anything but common: The infant was soon to be the first primate born from a procedure using cryopreserved testicular tissue taken from a prepubescent monkey. Researchers had grafted the tissue under its host’s skin to mature and then, using in vitro fertilization, had created the baby monkey, which was dubbed Grady after her graft-derived origins.Described today in the journal Science, ...

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