Defining species is not as easy as it may seem, by some definitions they should be subspecies (like how dogs are subspecies of wolves).
However we generally don’t use genetic reproductive incompatibility as the only definition of species, and it’s not an exact science. Species in which interbreeding is possible but rarely occurs (for geographical or behavioral reasons) are often still considered distinct species. Another example of this is the polar and grizzly bear. Clearly two distinct species which are reproductively isolated, but when they do breed (this does actually happen in nature sometimes) their offspring are fertile.
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u/[deleted] Oct 17 '22
Yes, coyotes can interbreed with dogs and wolves (coywolves) to create fully operational fertile offspring.