Eh, I'm a pedantic, boring nerd, but I checked and I cannot save myself from forumsplaining... In reality the estimates are 600K humans killed by other humans every year vs 1M killed by mosquitos. To be fair we are still our most dangerous enemy, because we are destroying the Earth ecosystem, and there can be catastrophic wars. But the mirror was more about the fact that we are the most dangerous predator of other animals.I think they're the biggest killers of humans among non human animals. But like fernandel says, nothing comes close to humans. I remember as a little kid, going to the Bronx zoo and there was some exhibit, with a cage for the most dangerous animal. It just had a mirror.
“If you can convince the lowest white man he's better than the best colored man, he won't notice you're picking his pocket. Hell, give him somebody to look down on, and he'll empty his pockets for you.”
This is not only because of whose genes will pass on, but it's also about regulation of population.I do remember from one study of captive wolves, that males would fight till one gave up, while females tended to fight to the death. Lions, after taking over a pride will kill cubs, and male domestic cats kill kittens.