After the dawn-wolf, two other subspecies branched off: the dire wolf (Canis Dirus) and the gray wolf (Canis Lupus). The dire wolf was a large canine that had hyena-like characteristics such as hunting and scavenging for food. Although the dire wolf was similar in size to the modern day wolf, there were several different features. The teeth of the dire wolf were more massive and it allowed greater crushing capabilities. Another different feature was the fact that the dire wolf had sturdier legs than the modern relative. At the end of the Pleistocene, only two genus Canid species remained. The gray wolf and the coyote survived the extinction that occurred 10,000 years ago at the end of the last ice age while the dire wolf has not. There is still much debate on where these species originated. Some believe that they originated in North America and then migrated to different parts around the world while others believe that these creatures originated from Alaska, eventually spreading to other regions. .
2. Physical characteristics.
.
A. General appearance.
Although wolves resemble dogs in many ways, close observations suggest that wolves are quite different. The wolves appear larger and more formidable than the dogs with their thick hair that insulates them from the harsh climates. The color of their coats varies depending on the type of environment and the region. In Greenland, the wolves generally appear snow-white whereas in Eurasia, the wolves appear reddish. Wolves also have pointed ears, shrewd eyes, and other facial features that portray an incredible creature whose senses are highly developed. .
.
.
B. Teeth.
One of the most important structures in the wolf is teeth. The wolf's jaw consists of 22 teeth; 12 incisors, 4 canines, 16 pre molar, and 10 carnassials and molars. Once a prey is captured, wolves use its carnassials to slice through the hide and swallow rather than chew the meat.