How the Placenta Evolved From an Ancient Virus
7th May 2021
“The placenta is essentially a fascinating organ because it allows for two human beings that are genetically very different. Because half of the fetus is maternal, but the other half is paternal, and yet the pregnancy can go on for nine months without the mom’s body destroying it,” Barroeta said. “And that, from an immune standpoint, is fascinating, because if you were to receive a piece of someone else and insert that under your skin, that would not last there for three days, your body will actively reject it.”
I’ll bet you didn’t know that.