Shocking: Scientists grow whole model of human embryo, without sperm or egg
Scientists have successfully grown a structure that closely resembles an early human embryo, all without using sperm, eggs, or a womb. The innovative "embryo model" created by the Weizmann Institute team is generated from stem cells and remarkably mimics the appearance of a 14-day-old human embryo. Notably, this embryo model also demonstrated functionality by releasing hormones that triggered a positive result on a pregnancy test in the laboratory. The primary goal of creating embryo models is to offer an ethical means of studying the earliest stages of human life. The first few weeks following fertilization are a period of rapid transformation, yet it remains poorly understood and is a significant source of miscarriages and birth defects. Professor Jacob Hanna from the Weizmann Institute of Science emphasizes the limited knowledge in this area, describing it as a "black box." This research, published in the journal Nature, marks a breakthrough as the Israeli team...