Humans are weird 2

(I have to break up the post into 2, blogspot won't let me post one long entry.)

We also do self-mutilation, or self-inflicted violence as some would call it. What's the deal? Who the hell will want to slash their own arm? [Link]
No animals would do that. The concept would be too strange for them to understand.

We not only like to hurt yourself, we also like to hurt other people( not to mention animals). We call it torture. And we are very good at it. [Link] It take thinking to come up with so many different sorts of tortures. The Chinese were surprisingly very good at it. The Roman were petty creative. I hear a good torturer can keep you alive for months, even years.

It's not all in the past though. WWII would see some outstanding examples in the use of tortures. Cambodian recent past can gives you a few pointers. All these happens not too long ago, less than 50 years.

And for the toture-inclined but in a hurry kind of guy, you can consider human sacrifice. Popular in almost all major religions in the past and still happens more often than you think till very recently. South East Asia was filled with human sacrifices. And then that's the problems of deciding if witch-burning is a form of human sacrifice. Oh well.[Link]

You know what's really really weird? Necrophilia. Fucking a corpse. Again it happens more often than you think. It's happening right now. Only a human, with all our intelligence, can look at a dead body and think of fucking it. No animals would do that. The thought would not even occurs to them.

Only humans, who is superior to all other animals, could have done any of the above things. Can anyone explain to me why?