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'Astonishing' Video Shows Human Embryo Implanting in Real Time

Researchers filmed embryos exerting force and digging into a simulated womb, revealing that about 70% of embryos fail to implant, a key factor in infertility, scientists said.

  • For the first time, scientists captured real-time video of a human embryo implanting in a laboratory model of a uterus, researchers say, revealing new details of the process.
  • Amid long-standing unknowns, researchers say implantation failure accounts for 60% of miscarriages and how a human embryo implants had long been a mystery.
  • Using full-color 3D microscopy, researchers say embryos exert "considerable force" and employ digging traction to invade uterine tissue.
  • Researchers say they have already developed a protein supplement via Serabiotics and Grifols that may advance fertility procedures like IVF.
  • Looking ahead, researchers plan to standardize materials for embryo implantation studies, which may clarify failure causes and improve fertility treatments, researchers say.
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Researchers at the Institute of Bioengineering of Catalonia recreate an artificial uterus and observe live and unpublished one of the key moments in the development of a person

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Nature broke the news in United Kingdom on Friday, August 15, 2025.
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