These astonishing biobots can help neurons regrow — but researchers have no idea how

The smallest Anthrobots are as wide as a human hair, and the largest is about the size of a pencil tip.  (Image credit: Gizem Gumuskaya/Tufts University)

Scientists have created tiny, self-assembling robots made from human cells that could one day repair damaged skin and tissue.

These tiny biological machines, called Anthrobots, are made from human tracheal cells without any genetic modification. Lab dish experiments revealed they can encourage neurons, or nerve cells, to grow in damaged tissue.