action.everylibrary.org/nationalaccess via @everylibrary.bsky.social
action.everylibrary.org/nationalaccess via @everylibrary.bsky.social
All embryos begin by developing female sex organs, with male sex organs only replacing them at around 6 weeks of gestation.
All embryos begin by developing female sex organs, with male sex organs only replacing them at around 6 weeks of gestation.