From Mental Floss:
10. YOUR FIRST MICROBIOME CONTACT WAS IN UTERO.
For years, science considered the uterus of a pregnant woman a sterile environment, but new research published in Science Translational Medicine revealed that placentas have a unique microbiome that is different from any other part of the body (though most similar to the microbiome of the mouth). Contact with their mothers’ placentas, and the umbilical cord that attaches them, offers babies their first exposure to the bacteria that will soon colonize and support their own small bodies. Understanding this particular microbiome may also help researchers learn more to treat in utero infections and preterm births. More.
By contrast, the space alien certainly exists, according to tax-funded sources, but has never been spotted anywhere.
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