In the Womb

This clip introduces the National Geographic special In the Womb, which follows a babys journey from conception to birth.

The end of a babys nine month journey is shown as well as scenes from inside the womb. Images in this series are made possible by new scanning techniques and computer simulations. What are 4d scans? Which sounds tend to have the greatest impact on the fetus? Do fetuses dream? What evidence could support this?