human evolution

Skulls of Japanese people have grown rounder with wider jaws and other changes in the past 100 years, according to a new study. Researchers attribute the shifts to improvements in health, diet, and environment rather than genetics. The findings challenge traditional references for modern human anatomy.

March 14, 2026 由 AI 报道

Simulations indicate that extinct Australopithecus hominins faced childbirth challenges similar to modern humans, with high pressures on their pelvic floors risking tears. Researchers analyzed pelvises from three Australopithecus species to model these forces. The findings highlight potential pelvic floor disorders in these early ancestors.