Japan zoo kills 57 snow monkeys due to 'alien genes'

Japanese macaques, commonly known as snow monkeys, are a tourist attraction in Japan A zoo in northern Japan has culled 57 of its snow monkeys by lethal injection after discovering they carried the genes of an "invasive alien species". Takagoyama Nature Zoo in Chiba said DNA testing showed the monkeys had been crossbred with the rhesus macaque. The non-indigenous rhesus macaque is banned under Jap