human fetuses have a vomeronasal organ, though no one knows whether it's functional. You can no more ask a fetus about these things than a python. Rawson surmises that the organ is a holdover from "when we were crawling out of the primordial soup,* and we needed to sense the chemicals in the environment and know which ones to go toward or away from.
( Mary Roach )
[ Gulp: Adventures on the ]
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