Are dogs and cats invasive alien species subject to extermination?

The House Cat ControversyFeral dogs and feral cats are listed on the Ministry of the Environment's "List of Alien Species for ...
来自MSN

Dogs steal alien UFO in hilarious invasion prank

These cute beagle dogs are playing when they are interrupted by a UFO landing in their dining room. Various Aliens pour out of the space ship, one by one, and each dog has his paws full with ...