Did Intelligence Evolve ���At Least Twice���?

Humans have a unique level of intelligence. Although some people vehemently deny that humans are unique, it���s obvious even to a child that we are totally different from everything else. (After all, when was the last time you saw a group of elephants sitting around having a deep philosophical discussion?) But the unique intelligence of humans doesn���t mean animals aren���t intelligent���God has gifted many of them with impressive intellectual abilities.

A recent article highlighted the intelli...