How Do You Define Human?

 Exactly what does it take for someone to define human behaviors? The following example should show that we are not that different from the animals around us:

A Russian chimpanzee has been sent to rehab by zookeepers to cure the smoking and beer-drinking habits he has picked up, a popular daily reported on Friday.

An ex-performer, Zhora became aggressive at his circus and was transferred to a zoo in the southern Russian city of Rostov, where he fathered several baby chimps, learned to draw with markers and picked up his two vices.

"The beer and cigarettes were ruining him. He would pester passers-by for booze," the Komsomolskaya Pravda paper said.