Animals have some sense of good and evil, even if way weaker than humans.
>In one experiment, hungry
rhesus monkeys refused to electrically shock their fellow monkeys, even when it meant getting food for themselves. In another study, a female gorilla named Binti Jua rescued an unconscious 3-year-old (human) boy who had fallen into her enclosure at the Brookline Zoo in Illinois, protecting the child from other gorillas and even calling for human help. And when a car hit and injured a dog on a busy Chilean freeway several years ago, its canine compatriot dodged traffic, risking its life to drag the unconscious dog to safety.
>Some research suggests animals have a sense of outrage when social codes are violated.
Chimpanzees may punish other chimps for violating certain rules of the social order, said Marc Bekoff, an evolutionary biologist at the University of Colorado, Boulder, and co-author of "Wild Justice: The Moral Lives of Animals" (University Of Chicago Press, 2012).
But I don't want to talk more about it. I'll just use a dictionary:
evil
https://en.wiktionary.org/wiki/evil
1. Intending to harm; malevolent.
It doesn't require any consciousness of good and evil.