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Three features that are characteristic of hominins are:
Bipedalism: Hominins have a unique way of walking on two legs, which is different from the quadrupedal gait of other primates. This feature is associated with the evolution of the pelvis, spine, and legs to enable efficient upright walking and running.
Increased brain size: Hominins have larger brains relative to their body size compared to other primates. This is thought to be associated with the evolution of cognitive abilities, such as language, tool use, and social cooperation.
Reduced canine teeth: Hominins have smaller canine teeth relative to their body size compared to other primates. This is thought to be associated with the evolution of a less aggressive social behavior and a shift towards a more varied diet.
