Wow. What else can you say?
A twin leans over and kisses the cheek of her sister in a heart-warming picture that would not be out of place in any family home.
Yet these siblings are a not even born and the astonishing images have been captured on a new 'four-dimensional' ultrasound scan of the womb.
The scans are a highly developed form of traditional ultrasound where very high frequency sound waves are used to produce images of what is inside the body.
As with older forms of ultra-sound, sound waves a emitted from a transducer, or probe, which is placed on the mother's abdomen and then moved to 'look at' areas in the uterus. These sound waves bounce back off the foetus, helping to create a 'picture' of the child on a screen.
The new 4D scan us ses the same frequency of sound waves w as in a normal ultrasound. But the sound waves are directed from many more angles, producing a 'real-time' video of the foetus as it moves and allowing scientists to say the images are in four dimensions.
More photos here.
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