The article talks about how they are synched and using the combined force of tiny sticky feet (like ants)... The researchers’ approach is counterintuitive. Rat

The article talks about how they are synched and using the combined force of tiny sticky feet (like ants)... The researchers’ approach is counterintuitive. Rather than striking powerful blows like a football player making a tackle or a jackhammer, they have focused on synchronizing the smooth application of very tiny forces. The microrobots work in concert, if slowly. The researchers observed that the ants get great cooperative force by each using three of their six legs simultaneously.