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Abstract
Molecular genetic tools have been used to dissect the evolutionary relationships of
the dog-like carnivores, revealing their place in the order Carnivora, the relationships
of species within the family Canidae, and the genetic exchange that occurs among conspecific
populations. High rates of gene flow among populations within some species, such as
the coyote and gray wolf, have suppressed genetic divergence, and where these species
hybridize, large hybrid zones have been formed. In fact, the phenotype of the endangered
American red wolf may be strongly influenced by hybridization with coyotes and gray
wolves. Hybridization and habitat fragmentation greatly complicate plans to conserve
the genetic diversity of wild canids.