Japan's bioethics panel approved creating embryos from stem-cell-derived sperm and eggs for research, enabling up to 14-day laboratory study to advance fertilization, reproduction, and genetics.
Evolution isn't a straight line: Modern humans come from 2 ancient lineages
The discovery represents a major reversal of the prevailing theory of human evolution, which suggested that modern humans descended from a single ancestral lineage in Africa.
Sequence diversity lost in early pregnancy - Nature
Germline mutations, especially de novo mutations, play a significant role in disease risk and pregnancy loss, but many factors influencing these are still unknown.