Frans de Waal on the sobering truth on why you don't hear much about talking apes anymore. http://www.amazon.com/Are-Smart-Enough-Know-Animals/dp/0393246183/ref=sr_1_1?s=books&ie=UTF8&qid=1461766056&sr=1-1&keywords=Frans+de+Waal …pic.twitter.com/l5Huippz42
10:15 AM - 27 Apr 2016
from Berlin, Germany
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