A gene-edited mouse created with two male parents has now survived to reach adulthood. This is a momentous occasion for genetics, as previous attempts to create bi-paternal mice have failed for a ...

Scientists have created “synthetic” mouse embryos from stem cells without a dad’s sperm or a mom’s egg or womb. The lab-created embryos mirror a natural mouse embryo up to 8½ days after fertilization, ...

Scientists in the UK say they’ve pulled off a feat of genetic engineering: creating a “synthetic” mouse embryo without the need for egg or sperm cells. The embryos were created with stem cells instead ...