
"Physiology" by Earnie and Helga Kollar from the textbook Biology Today (1972)
More images from Biology Today at A Journey Round My Skull
Upon returning to class after the Golden Week holidays, students at a Tokyo elementary school were delighted to find their teacher had been replaced by a robot. The talking humanoid, named “Saya,” was originally developed as a receptionist robot in 2004 by professor Hiroshi Kobayashi of the Tokyo University of Science, but has recently begun taking on work as a substitute teacher.