Coywolf
A hybrid canid of coyotes, wolves, and dogs.
A coywolf is a canid hybrid descended from coyotes (Canis latrans), eastern wolves (often classified as Canis lycaon, though many authorities treat it as a subspecies of gray wolf or a hybrid complex), gray wolves (Canis lupus), and dogs (Canis lupus familiaris). All of these species are members of the genus Canis with 78 chromosomes, allowing interbreeding. Genomic studies indicate that many eastern wolf and coyote populations show admixture, but western gray wolves (e.g., in Alaska and the Rocky Mountains) have very little to no coyote admixture. Another term for these hybrids is sometimes wolfote.
- field
- Canid hybrid biology
- known_for
- Hybridization of coyotes, eastern wolves, gray wolves, and dogs
- chromosome_count
- 78
- typical_size
- Larger than coyotes but smaller than wolves
Lore & Background
Hybrids of any combination tend to be larger than coyotes but smaller than wolves, showing intermediate behaviors. In one captive hybrid experiment, six F1 hybrid pups from a male northwestern gray wolf and a female coyote were measured shortly after birth; despite being delivered by a female coyote, the hybrid pups were much larger and heavier than regular coyote pups. At six months, their howls started like gray wolves but changed into coyote-like high pitched yipping.
Reader's Guide
The coywolf represents a significant case of recent hybridization among North American canids, creating the largest mammalian hybrid zone known. This has caused concern over the purity of remaining wolves, as eastern coyotes are too small to substitute as apex predators of moose and deer. Genetic studies show the northeastern coywolf is approximately 60% western coyote, 30% eastern wolf, and 10% domestic dog. The taxonomy of red and eastern wolves remains debated, with some studies arguing they are hybrid species and others asserting they remain genetically distinct North American taxa. The hybrid's adaptability to human-developed areas may be partly due to domestic dog genes.
Did You Know?
- The coywolf is sometimes called a wolfote.
- One captive hybrid experiment found that F1 hybrid pups from a male northwestern gray wolf and a female coyote were much larger and heavier at birth than pure coyote pups.
- Eastern coyotes range from New England to Virginia and into several Canadian provinces, including Ontario, Quebec, and Newfoundland and Labrador.
Frequently Asked Questions
What is a coywolf?
A coywolf is a naturally occurring hybrid canid that blends the genetics of coyotes, eastern wolves, gray wolves, and domestic dogs into a single animal. It occupies a middle ground between a coyote and a full-sized wolf in both body size and ecological niche.
Which species can interbreed to produce a coywolf?
Coyotes, eastern wolves, gray wolves, and dogs all belong to the genus Canis and share the same 78-chromosome count, making cross-breeding between them genetically feasible. In practice, the most common parental combinations involve coyotes and eastern wolves, though gray-wolf and dog ancestry can also contribute.
How big is a coywolf compared to a coyote or a wolf?
Coywolves typically weigh more than a pure coyote but fall short of a full gray wolf in mass and stature. They sit squarely in between, noticeably bulkier than a coyote yet still smaller than a mature wolf.
Are all wolf populations mixed with coyote genes?
No—genomic studies show strong coyote admixture in eastern wolf and coyote populations, but western gray wolves in regions like Alaska and the Rocky Mountains carry very little to no coyote DNA. The hybridization is therefore a regional phenomenon rather than a universal one.
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