'Talking' to cells without influencing genes or molecules: it can be done by influencing bioelectric fields. By manipulating the bioelectric fields in organisms like planaria and tadpoles, Prof. Michael Levin has shown how eyes and other organs can grow in unconventional locations, how planaria can be ‘told’ to grow two heads, and perhaps most importantly: how cancer cells can be ‘told’ to stop growing in frogs. These promising experiments might lead to groundbreaking new therapeutics...