Why do we humans so often fight wars and tell lies?

The old humans will fight to win, no matter what the cost.

Humans quarrel and fight over this one, even as they do with all the others.

He wondered if the humans had fought for their homes.

"Humans fight each other all the time," Auger pointed out.

"No human can fight against the powers of magic," returned the King in a surly voice.

He tried to imagine how humans fought among themselves.

I confess that I do not understand what makes you humans fight.

Of course, if the humans had fought, he would see bodies on the ground in front of him.

In the Bronze Age, humans fought each other all the time.