baconseedsower t1_j6lvi0j wrote
Reply to comment by vyrelis 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
It isn't uncommon. They are hardwired for the concept of one baby, so when nature gives them two, they don't always understand. Also, they're cows. Not very bright.
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