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1.3 outline features that classify humans as: mammal primate hominid hominin
outline features that classify humans as:
- mammal
- primate
- hominid
- hominin
- The mammalian features of humans are: hair, mammary glands, three separate bones in the inner ear, four-chambered heart and a lower jaw consisting of one bone.
- The primate features of humans include: fingernails and toe-nails, an opposable thumb, stereoscopic (binocular) vision, a relatively large brain, a flattened face with a reduced sense of smell and forward facing eyes, ridged finger pads, two nipples and a prolonged period of care for the young.
- The hominid features of humans are: relatively large brain size and the lack of a tail.
- The hominin features of humans are: bipedal upright gait, arms shorter than legs, and a larger brain size relative to body size.