Embryo Development Linked to a 500 Million Year Old Viral Infection

<img width="128" height="52" src="https://www.sciencealert.com/images/2024/01/HumanEmbryo.jpg" alt="Human embryo"/>
We're all 8-10 percent retrovirus.

https://www.sciencealert.com/embryo-development-linked-to-a-500-million-year-old-viral-infection