the ability to do evil consciously and that evil is unlimited

brutality.
you heard it right.

conscious evil. Rather, deliberately and deliberately harming another living thing. knowingly and willfully harming whatever the form.

(see: delaying pleasure )

there is no 'feature'. there is only one difference; have less predictable instincts.

(see yuval noah harari )

there are thoughts, heart, emotions and writings in this manner.
If you think that animals are stupid creatures, you are in great error because if they are stupid, you can look at the herds of lion, wolf, wild dog, dolphin and killer whale, how they are organized while hunting and how they proceed systematically and come to a conclusion. I think it is not very clear that there is reasoning and reasoning under this, and there is the same in individual hunted creatures, or an example of crow can be given to throw walnuts under the passing cars (paris municipality officially runs crows for dried nuts with a system that allows crows to collect cigarette butts) this and such examples are intelligence thinking is the result of a mind that works properly in the form of decision making and implementation.

There are primate species that use tools. 4 primate species have passed into the stone age after us.

mildew-growing ants, wasps attacking honey bees for slave workers, the snake patiently waiting for its prey, I believe that these cannot be explained by the mere instinctive or creative miracle that they have no thinking ability.

I mean, it seems absurd to me to see creatures outside of us as mindless.

If we come to the subject of reproducible examples, the most distinctive feature that separates us from animals may be that we bury our dead, maybe there are other creatures that bury their fellows that I do not know, then the only difference remains that we go to space. When we get out of here completely, another creature (possibly another type of primate) will evolve to do what we do, and maybe someday they will come out into space.

Inference is nothing but complex language and hand sensitivity.
animals also feel all emotions, solve problems and keep them in their memories.

In recent years, the "separating features" have begun to disappear and the differences between them have started to equalize, I see it like this.

self control

I would like to give long examples now. I think even the meaning of the word is enough. you can duplicate the examples according to yourself.