The Shape of the Hand and the Foot in 2 Primate Species (image) RIKEN Share Print E-Mail Caption Both monkey (Macaca fuscata, left) and human (Homo sapiens, right) have five physically independent fingers (top) and five toes (bottom), although the human foot is irregular in shape. Monkey hand, foot and human hand are similar in shape except for monkey heel (grey). In addition, human toe I is larger than the lesser toes, whereas monkey toes are similar in size. The fingers were represented independently (color coded) in the primate somatosensory cortex (SI): I, red; II, orange; III, yellow; IV, green and V, blue. By contrast, the representations of the toes were fused, with the exception of the great toe in humans. Credit RIKEN Usage Restrictions UNDER EMBARGO UNTIL: 00:01 BST/ 09:00 JST Monday 7th October 2013; 20:00 EST Sunday 6th October 2013 Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.