Some suggest there are just two species of wolf: the gray wolf (Canis lupus) and the red wolf (Canis rufus). Others, however, throw a third or a fourth into the mix; the Eastern wolf (Canis lycaon ...

The coywolf sounds like something out of a science fiction, but it's just part coyote (Canis latrans), part gray wolf (Canis lupus) and part domestic dog (which is technically a subspecies of the wolf ...

In 2011, that changed. The gray wolf (Canis lupus) is a recovering endangered species protected under the California Endangered Species Acts and U.S. Fish and Wildlife Service Federal Endangered ...

The dog, Canis familiaris, is a direct descendent of the gray wolf, Canis lupus: In other words, dogs as we know them are domesticated wolves. Not only their behavior changed; domestic dogs are ...

Gray wolf, Canis lupus, Tracy Brooks/USFWS. Image is available for media use. The Center for Biological Diversity is a national, nonprofit conservation organization with more than 1.7 million members ...