LupusDeusMagnus t1_j6nli5n wrote
Reply to comment by hammyhamm 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
Blood doesn’t usually goes from one twin to another. It would have to go through the mother.
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