The Australian government announced plans to cull up to 2 million feral cats by 2020 in a bid to preserve dozens of native species that authorities claim face extinction because of the cats’ predatory behavior. Speaking to a national radio station, Gregory Andrews, the country’s first threatened-species commissioner, said Australian Environment Minister Greg Hunt “is declaring war on feral cats, and he’s asked me to take charge of that program.” Hunt unveiled the five-year plan at a Melbourne zoo Thursday, vowing to protect Australia’s native mammal and bird populations.