An insect-like robot has been designed to travel through the body to cure disease. The 3D printed machine, made from gelatine, is powered by temperature and feels like a gummy sweet. Scientists hope that it could replace pills or intravenous injections that can cause life-threatening side effects. Senior study author Professor David Gracias, of Johns Hopkins University in the US, said: “It seems very simplistic but this is an object moving without batteries, without wiring, without an external power supply of any kind – just on the swelling and shrinking of gel.” Click here to sign up to our newsletters. Read More Snow blankets the Cotswolds as cold snap sends temperatures plummeting FTX founder to testify before US House over bankrupt crypto exchange Prince Harry speaks of ‘institutional gaslighting’ in new Netflix trailer