A team of researchers at Harvard’s Wyss Institute have overcome this problem and created this softbot. The structure of the robot is elastic silicone, which remains flexible in its neutral state. Then, fluid is pumped through microscopic channels and into pockets to actuate nine individual joints in the legs, body, and jaws. The joints will remain rigid until the fluid pressure is released. The robot spider itself is roughly the size of a coin, but external pumps are required to actuate the joints. This robot can be useful in small-scale operations such as an surgery.