Learn English: Human Embryo Implantation: A First-Time Look! (normal)

For the first time, scientists have filmed a human embryo implanting in a uterus, using advanced 3D imaging.

The footage shows the embryo's surprisingly forceful 'burrowing' into the uterine lining to attach.

This detailed observation is important because implantation problems are a major cause of infertility.

The research could significantly improve understanding of early pregnancy and lead to better fertility treatments.