'We’re growing brains outside of the body'As she speaks, Madeleine Lancaster rests her hand on her pregnant belly. “Oh they’re about six or seven months along now”. At this point her progeny measure about four millimetres across. She’s growing a few hundred, and each has around two million neurons already. Fortunately, she’s not talking about an enormous brood of unborn babies – though she is expecting one normal human. No, this scientist
