Richard Leakey Quotes
Spoken language clearly differentiates Homo sapiens from all other creatures. None but humankind produces a complex spoken language, a medium for communication and a medium for introspective reflection.
Citations
Leakey, Richard. The Origin of Humankind. BasicBooks, 1994.
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Richard Erskine Frere Leakey FRS is a Kenyan palaeoanthropologist, conservationist and politician. Leakey has held a number of official positions in Kenya, mostly in institutions of archaeology and wildlife conservation. He has been Director of the National Museum of Kenya, founded the NGO WildlifeDirect and is the chairman of the Kenya Wildlife Service.