Dire wolf 恐狼
(重定向自Canis dirus)
The dire wolf (Canis dirus, "fearsome dog") is an extinct carnivorous mammal of the genus Canis, roughly the size of the extant gray wolf, but with a heavier build. It evolved in North America and was the most derived species of Canis from that continent. Canis dirus lived during the Rancholabrean land mammal age of North America (240,000–10,000 years BP) and was among the many large carnivores and megaherbivores that became extinct in North and South America near the end of the Pleistocene epoch. Its ending is associated with the Quaternary extinction event.