405134 t1_j6oufl5 wrote
Reply to comment by sionnach in TIL When a cow has opposite sex twins, the female twin is usually born intersex and infertile. This happens because the twins blood supplies are linked, which exposes the female to male sex hormones. by awawe
Wow , that’s gotta be pretty rare though right? And I’m sure situations where twins are conjoined in the womb also potentially could share blood; like conjoined twins
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