Synthetic embryos have been implanted into monkey wombs

Embryos made from stem cells, rather than an egg and sperm, appear to generate a short-lived pregnancy-like response in monkeys.

Scientists Create 'Synthetic Embryos' From Monkey Cells

Media----Center for Excellence in Brain Science and Intelligence

First Synthetic Human Embryo Created: What Does It Mean?

Lab-grown embryos and human-monkey hybrids: Medical marvels or

Scientists create world's first 'synthetic embryos

Researchers create embryo-like structures fro

Without an egg, sperm or womb, scientists create synthetic embryos

Synthetic Morphology Lets Scientists Create New Life-Forms

Scientists Create Synthetic Human Embryos Using No Sperm or Egg

Scientists create model human embryo lasting 14 days, without eggs