(Public domain image from U.S. Fish and Wildlife Service / George Harrison [full size image])
Coyotes are only found in North America.
Coyotes may occasionally assemble in small packs, but normally hunt alone.
Despite being extensively hunted, the coyote is one of the few medium-to-large-sized animals that has enlarged its territory since human encroachment began (another is the raccoon?), and the "dog" you see scrounging from a suburban trashcan may in fact be a coyote.