There have been anecdotal reports of men who, following the death of a wife, have breastfed their babies, but there is no scientific confirmation of such claims. As well as having nipples, men also have wealkly developed mammary glands, although these cannot produce milk. Both male and female embryos form nipples and mammary glands during the first weeks of pregnancy. Only later does the gender specific blend of sex hormones ensure that only females develop milk-producing glandular breast tissue. In males, the nipples and vestiges of glandular tissue survive as useless but harmless parts of the body. However, the claim that in some primitive tribes men allow babies to use their nipples as dummies could be true.
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