Changes

The design of the [[larynx]] gives a physiological capacity for speech.  Consciousness is of unknown source; speculations include being an emergent property of a complex brain and the mind existing independently of the body.

The design of the [[larynx]] gives a physiological capacity for speech.  Consciousness is of unknown source; speculations include being an emergent property of a complex brain and the mind existing independently of the body.

Humans have more [[hair]] follicles than chimpanzees, one of the next most similar species, but shorter finer hair in most body areas makes this hard to see. Hair and skin colour varies according to the amount of melanin, a pigment that helps protect skin from the sun.  Originally an adaptation to climate, pigment variation is now found globally.

Humans have more [[hair]] follicles than chimpanzees, one of the next most similar species, but shorter finer hair in most body areas makes this hard to see. Hair and skin color varies according to the amount of melanin, a pigment that helps protect skin from the sun.  Originally an adaptation to climate, pigment variation is now found globally.

==Tool use==

==Tool use==