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 ...

2. Coloration The gray wolf and red fox were both named for their fur coloration. That makes it easy to remember that the gray wolf is primarily grey in color, and the red fox is an orangish-red ...

The gray wolf, also known as the timber wolf or ... 45 kg (95–99 lb), and females 36–38.5 kg (79–85 lb). Like the red wolf, it is distinguished from other Canis species by its larger size ...

and participation in the federal recovery and release programs for two critically endangered wolf species — the Mexican gray wolf and red wolf. www.nywolf.org.

The gray wolf was added to the endangered species list in 1974. That meant that the small population of wolves in Minnesota could now safely expand in number and territory, Weiss said.