Biology: The Cool Yet Simple Wonders of Life

A screenshot of a Quora answer by Suzanne Sadedin, Ph.D., explaining the evolutionary biology behind menstruation. The text details how the hemochorial placenta, unique to humans and some primates, creates a conflict between mother and fetus for resources, leading to the evolution of menstruation as a way to discard non-viable embryos. The answer is presented as a long-form, academic-style explanation, with footnotes and links to scientific papers.

Report this content