Crab-Eating Monkey Embryo Post-Implantation (IMAGE) Kyoto University Caption A crab-eating monkey embryo post-implantation (14 days after fertilization). New research shows that certain primate stem cells have pluripotency superior to some types derived from mice. The study, published in Nature, maps how pluripotency differs among mice, monkeys, and humans, and illustrates for the first time the characteristics unique to primate stem cells. Credit Mitinori Saitou Usage Restrictions Please credit Mitinori Saitou. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.