Our DNA holds thousands of dead genes and we’ve only just begun to unravel their stories. But one thing is already clear: we’re not just defined by the genes that we’ve gained over the course of our evolution, but also by the genes that we’ve lost along the way.
Video: Humans have lost many genes over the course of our evolution. Here’s how they helped define us
Infographic: Growing human embryos — How long should researchers watch human development play out in a dish?
In May, the International Society for Stem Cell Research (ISSCR) released new guidelines that relaxed the 14-day rule, taking away ...
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