Darwin Illusion: Evolution in a blink of the eye

摘要

To commemorate the bicentenary of Charles Darwin (1809 – 1882), we devised a new visualillusion with an evolutionary theme. Figure 1 shows two monkeys. To see the illusion,stare at the centre of the picture for about 30 s without moving your eyes. Next, look to awhite wall and blink a few times. The monkeys should suddenly transform into a perfectportrait of Darwin.