These were the saber-tooth cat, the North American lion, the dire wolf and the coyote.
VOA: special.2010.04.07
Leung, however, is a cat among the pigeons, or as described in the local press, a wolf (mean and aggressive) to Mr Tang's pig (complacent and a bit dim).
Dr O'Donoghue says that these 19th Century wildcats show the size and power of this species - saying that they were as different from a domestic cat as a wolf from a dog.