A group of researchers from the Institute of Bioengineering of Catalonia (IBEC), In collaboration with Dexeus University Hospital, the team has recorded for the first time how a human embryo implants in the uterus. This is a microscopic process that occurs in the body of an adult, so it had never been observed before. "It was like a black box whose inside we were finally able to see," says Samuel Ojosnegros, director of the study.