What are the general structural features of humans and other primates?

Common features for humans and other primates are: large brain size with forebrain hemispheres covered with furrowed cortex, complex behavior, very mobile limbs, contrasting the first finger of the hand with the rest (grasping function of the hand), the development of flat nails on the fingers instead of claws; forward-looking eyes (binocular vision); two mammary glands, the birth of young sighted, but incapable of independent movement, requiring parental care.

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