FFacts On Tap Editorial Team Fact-checkedUpdated December 13, 20254 min read
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The coywolf isn't a separate species you'll find in a field guide — it's the nickname for the eastern coyote, a wild canid whose genome carries coyote, wolf, and even a bit of domestic dog DNA. Over the last two centuries, as wolves were eliminated from much of the eastern United States and coyotes expanded into the resulting gap, the two canids interbred and produced a larger, more adaptable animal that now thrives everywhere from deep forest to city parks.
Here's what genetic research and wildlife biologists actually know about this hybrid, plus answers to the most common questions people ask about it.
"Coywolf" is the popular nickname for the eastern coyote, a hybrid canid found across the northeastern United States and eastern Canada.
Eastern coyotes are not purely coyote and wolf — genetic studies show their genome is roughly 60-65% western coyote, 25-30% wolf (a mix of gray wolf and eastern wolf ancestry), and 10% domestic dog.
The hybridization is thought to have begun 100-200 years ago in the Great Lakes and southern Ontario region, as wolf populations collapsed from habitat loss and hunting while coyotes expanded eastward into the vacated territory.
Eastern coyotes are noticeably larger than their western coyote relatives, typically weighing 30-50 pounds, with males generally heavier than females and some individuals topping 60 pounds.
Their extra size compared to western coyotes is attributed largely to the wolf DNA they carry, which also gives them a broader snout, larger teeth, and more muscular build than a typical western coyote.
Coat color varies widely, from gray to reddish-brown to nearly black, often with mixed black and white markings — the same coat-color genes linked to domestic dog ancestry.
Their tail is bushy with a black tip, generally shorter and less wolf-like than a true gray wolf's tail.
Eastern coyotes usually live in small family groups — typically a mated pair and their pups — rather than the larger multi-generational packs seen in gray wolves.
They are opportunistic and highly adaptable hunters, able to bring down deer by working together while also hunting alone for rabbits, rodents, and other small prey.
Their diet is omnivorous and includes fruit, berries, insects, and carrion in addition to meat.
Coywolves have successfully colonized cities, including Chicago, Boston, New York, and Toronto, often living unnoticed near people.
Because they are a hybrid rather than a formally recognized species, coywolves have no distinct legal protection status of their own in the U.S. or Canada.
Coywolves are generally shy around humans and attacks are rare, though wildlife agencies still advise never feeding or approaching them.
The eastern wolf (Canis lycaon or Canis lupus lycaon, depending on the classification scheme used) is itself a subject of ongoing taxonomic debate among biologists, which is part of why eastern coyote ancestry is described differently across sources.
Coywolf howls can sound different from both pure coyote yips and wolf howls, sometimes described as a blend of the two, which wildlife biologists use as one clue (alongside size and skull shape) to informally identify hybrids in the field.
Frequently asked questions
What is a coywolf?
"Coywolf" is a common nickname for the eastern coyote, a wild canid whose genome is a mix of coyote, wolf, and a small amount of domestic dog DNA. It is not an officially recognized separate species.
Are coywolves dangerous to humans?
Coywolves are generally wary of people and attacks on humans are rare. As with any wild animal, experts recommend keeping a safe distance and never feeding them.
What do coywolves eat?
They are opportunistic omnivores that hunt deer, rabbits, and rodents, and also eat fruit, insects, and carrion, adjusting their diet to whatever is available in their habitat.
How can I identify a coywolf?
Look for a coyote-like animal that's notably larger and heavier than a typical western coyote, with a broader snout, bigger teeth, and a coat that ranges from gray to reddish-brown with black and white markings.
Where do coywolves live?
Eastern coyotes are found throughout the northeastern and mid-Atlantic United States and eastern Canada, and have adapted to habitats ranging from forests and farmland to suburbs and major cities.
How much of a coywolf's DNA is actually wolf?
Genetic studies estimate wolf ancestry (combining gray wolf and eastern wolf) at roughly 25-30% of the genome, with the rest split between coyote (about 60-65%) and domestic dog (about 10%).
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