name some things that differentiate humans from animals

ability to use hydrocarbon fuels to generate energy (starting with caveman fire)

While humans have used animal power for millenia (not so much now), animals themselves can only use animal power.
 
No, most animals are more prone to violence than humans.

For example, wolves are like relentess and unstoppable gangs of canniballistic murderers! :D

Predatory animal species kill in order to survive. Man kills for a lot of reasons, very few of which have to do with eating. Name one species that has killed millions of it's own kind. I can think of only one.
 
Predatory animal species kill in order to survive. Man kills for a lot of reasons, very few of which have to do with eating. Name one species that has killed millions of it's own kind. I can think of only one.

This is supposed to be a discussion about biology, not politics. If there were 6 billions cats on this planet, they would fight and kill each other, too!
 
This is supposed to be a discussion about biology, not politics. If there were 6 billions cats on this planet, they would fight and kill each other, too!

Stating that we are prone to violence or that we kill millions of our own is not a political statement. It's a statement of fact. The argument that we do this because there are six billion of us ignores the fact that even when there were far fewer of us we were still at each others throats.