Primates are an order of mammals that includes lemurs, monkeys, apes and even humans. Primates have large brains compared to other mammals, and unlike most other mammals they rely primarily on vision instead of their sense of smell. Many primates feature opposable thumbs to help them grasp things, and all but the apes and humans have tails. This set features 10 primate figurines: indridae, Japanese macaque, howler monkey, common marmoset, red-handed tamarin, emperor tamarin, proboscis monkey, bonobo and two Gibbons. The indridae is a lemur, while the bonobo and gibbon are apes. The rest of the figurines are monkeys. Sizes range from 2" to 3" long. Terrific for display or pretend play. For ages 3 and up.