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发帖数: 3905 | 1 Constance Holden
Human beings were anatomically ready to speak more than 150,000 years ago--b
ut clear evidence that they were doing so does not appear for 100,000 years
afterward
Nothing is more human than speech. Our closest primate relatives, chimpanzee
s, use tools, have intricate social lives, and show signs of self-awareness.
But they lack spoken language, and all the capacities it implies, from rapi
d and flexible manipulation of symbols to the ability to conceptualize thing
s remote in t |
|
