We're the only species that takes intra-species predation seriously. It happens elsewhere in nature occasionally but we humans are manipulated into wars and killing each other.
We've let the psychopaths rise to the top of society in defence, politics and business. The Gnostic taught us this was a genetic deficiency not originally planned. John Lash is worth listening to on this as it's a myth that lives on around us on the front pages of the newspapers and on electronic screens of reality framing.