外來物種野貓一直對澳洲的原生動物帶來很大威脅，令不少動物面臨危機。有生態學家設計了一台機器人，能偵測野貓並噴射毒素於貓身上，讓貓舔自己時中毒身亡。
feral cats are invasive species that has been one of the major threat to local species in Australia; they put many of the animals in danger. an ecologist invented a machine that would detect and spray poison on feral cats, and eventually the cats would live themselves to death.
