-
The human Homo sapiens sapiens belongs to the order of primates (Primates),
-
the suborder of higher primates or monkeys (Haplorhini or Anthropoidea),
-
the infraorder or section of Old World monkeys (Catarrhini),
-
the superfamily of hominoids (Hominoidea or Anthropoidea),
-
the family of hominids (Hominidae),
-
the subfamily of hominines (Homininae).
Human affiliation with primates is proven by data from:
-
comparative anatomy,
-
molecular biology and biochemistry,
-
embryology,
-
genetics,
-
ethology,
-
paleontology.
In separate features, humans do not differ from other primates. The structure of the temporal bone, the brain, the hand, and the hair differ only in details. For example, in terms of the number of hairs per square centimeter, humans do not differ from chimpanzees, except in one detail: chimpanzees have thick, long hair, while humans have a fine fuzz. By the amount of chest hair, humans surpass gorillas. During archaeological excavations, individual human teeth are often mistaken for those of orangutans. Monkeys share the same blood groups with humans, and there have been cases of successful blood transfusions and organ transplants. Moreover, the human and chimpanzee genomes differ by only 2%.