Crossbreeding can occur by artificial breeding or if the dog and wild species member are tolerant of each other's species, usually through socialization. Dog crossbreeding with wolves, coyotes, and jackals will produce fertile offspring, but dog crossbreeding with foxes will not.
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Answer:
Crossbreeding can occur by artificial breeding or if the dog and wild species member are tolerant of each other's species, usually through socialization. Dog crossbreeding with wolves, coyotes, and jackals will produce fertile offspring, but dog crossbreeding with foxes will not.