| The gray wolf, also called the timber wolf, inhabits mountains, forests, taiga, plains, and tundra across northern North America, Europe, and Asia. One of at least 36 species belonging to the family Canidae, which includes the coyote, jackal, fox, and domestic dog, the wolf is characterized by powerful teeth, a bushy tail, and round pupils, and lives and hunts in packs. The family Canidae is believed to have originated in North America 55 million to 38 million years ago during the Eocene Epoch. |