'4D' images of unborn babies have helped scientists' understanding of their physical and psychological development in the womb.
Researchers took 60 scans of 15 healthy foetuses to create '4D' images - 3D scans that can be seen in real time.
Babies appear to learn about touch while in the womb and can predict, rather than react to, their own hand movements.
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One person has been confirmed dead and several are injured in the ongoing incident in Las Ramblas.
A number of fatalities and several injuries have been reported after a van has crashed into people in the Ramblas area of Barcelona.
John Underhill said geological changes 55 million years ago mean the UK's geology is unsuitable for shale oil and gas production.