In the Race for Life, Which Human Embryos Make It , Deep Look

Every one of us started out as an embryo, but only a few early embryos about one in three grow into a baby. Researchers are unlocking the mysteries of our embryonic clock and helping patients who are struggling to get pregnant. SUBSCRIBE: Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is supported by HopeLab, The David B. Gold Foundation; S. D. Bechtel, Jr. Foundation; T