Science Daily: Anthropology News
Large heads, narrow pelvises and difficult childbirth in humans: Adaptations in human morphology explain why
The size of the neonatal skull is large relative to the dimensions of the birth canal in the female pelvis. This is the reason why childbirth is slower and more difficult in humans than in most other primates. Scientists have identified adaptations in the morphology of the human body, which were unknown so far, a new study shows.
Using statistics that describe how an infectious disease spreads, an anthropologist analyzed different theories of how people first settled islands of the vast Pacific between 3,500 and 900 years ago. Adrian Bell found the two most likely strategies were to travel mostly against prevailing winds and seek easily seen islands, not necessarily the nearest islands.