During the first weeks of pregnancy, the developing placenta in a mother's womb undergoes a dramatic change. Individual cells ...
What to Expect on MSN
When Does Your Baby's Sense of Smell Develop in the Womb?
Some researchers believe fetuses may be able to start smelling — i.e., reacting to the chemicals they “breathe” in through their noses — in the womb as early as month 6, though the sense really ramps ...
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