We've put some small files called cookies on your device to make our site work.
We'd also like to use analytics cookies. These send anonymous information about how our site is used to a service called Google Analytics & Hotjar Analytics. We use this information to improve our site.
Let us know if this is OK. We'll use a cookie to save your choice. You can read more about our cookies before you choose.
Authored by Prof Kathy Niakan, The Francis Crick Institute and Wellcome and MRC Cambridge Stem Cell Institute, Developmental biologist, working in human developmental and stem cell biology
