Are crows the ultimate problem solvers?
Scientists have also discovered crows can count up to 3. Weren’t human primitives so too ? In Chinese, English, French, etc, anything upto 3 is equivalent to many.
Crows are ugly black birds, found commonly in the hawker centers here scrounging left over food on the tables or rubbish dumps. They are good children with strong filial piety, bringing food back to feed old parents. Below is a Tang dynasty poem by Bai Juyi白居易 (800AD) praising the crows:
Mathtuition88 
I believe that there’s evidence crows can count to five or six, if I remember rightly from reading The Number Sense.
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That’s interesting! I read from Wikpedia (http://en.wikipedia.org/wiki/Bird_intelligence#Counting) that cormorants can count up to seven.
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