Dire wolves were plentiful in America. So abundant that there were at least two subspecies of dire wolves in existence: Canis dirus dirus and Canis dirus guildayi. Canis dirus dirus weighed about 150 lbs on average and Canis dirus guildayi was slightly smaller at 132 lbs on average. Canis dirus dirus lived east of the Continental Divide and had comparatively shorter teeth and longer legs. Canis dirus guildayi had longer teeth and shorter legs and lived primarily in California and Mexico.

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