How would our world be different if we had never evolved an opposable thumb?
回答 (3)
2007-03-13 5:25 pm
✔ 最佳答案
hitchhiking would be tricky
2007-03-12 12:20 pm
No tools. No manufactured objects. (such as your computer).
2007-03-12 1:09 pm
ALL primates have an opposable thumb. Humans aren't all that special in that aspect.
收錄日期: 2021-04-25 13:21:20
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