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1955photo t1_j6lsl26 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

Cows quite often are confused about that. And sometimes they will just reject a calf for no apparent reason. We are not talking about rocket scientists here. :D

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