Cruelty reigns among apes and monkeys as well. Those who study animals see the harsh nature behind the soft fur, brown eyes, and flattering media images. An anthropologist had been studying a group of monkeys in Africa for some time when a party of chimpanzees invaded his safe territory. Nearly four hours later, the hunters were still eating. . . The movie doesn't tell us the gruesome facts of nature in the wild.
Evil is unique to humanity.
We alone are given a moral choice. Unless they are domesticated and trained to obey, animals are expected to follow their natural instincts. On the other hand, humans are held accountable to a higher standard. Ignorance doesn't cancel the consequences for refusing to heed God's order. America seems embarrassed to talk about God's standard these days.