TED: A mouse with two dads — and a new frontier for biology | Katsuhiko Hayashi

The video discusses the process of fertilization, highlighting the union of sperm and egg as the beginning of life. It addresses challenges in reproduction, such as declining birth rates and endangered species. The formation of germ cells in the body is explained, followed by a detailed look at in vitro gamete genesis, a technology that allows germ cell creation outside the body using pluripotent stem cells. The video explores applications of this technology in conservation and introduces the concept of sex-independent reproduction, showcasing innovative methods to create eggs from male cells.

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