All vertebrate embryos follow a common developmental path due to their common ancestry. All have a set of very similar genes (the homeobox genes) that define their basic body plan. As they grow ...

MPs had been debating the Human Fertilisation and Embryology Bill, which would allow regulated research using hybrid or 'admix' embryos, where the nuclei of human cells are inserted into animal eggs.

This week, the world met the woolly “mammouse”—a genetically engineered mouse with woolly mammoth hair. The scientists at Colossal Biosciences who created it think it’s a promising step ...