Scientists in Serbia have found a link between psychopathy and the belief that animals aren't as worthy as humans. People who show signs of psychopathy – such as being impulsive, lying compulsively albeit and having a 'superficial charm' – may be more likely to humiliate or even hurt animals as a result. Their experiments also suggest animal haters are 'sadists', meaning they derive pleasure from inflicting pain, suffering or humiliation. The experts report that 'dark minds do not like animals'. Each of the four Dark Tetrad traits – narcissism, Machiavellianism, psychopathy and sadism – are made up of particular undesirable...