Naxela t1_j6kux41 wrote on January 31, 2023 at 1:11 AM

Reply to comment by elpajaroquemamais 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

Intersex animals are still of one particular sex or the other. Truly hermaphroditic mammals are an extreme rarity. I don't think there's even known examples in humans.