文档介绍：Mexican gray wolf
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Mexican gray wolf
Diet
Behavior
Mexican wolf pack
Population
Reproduction
Range & Habitat
Conservation reliant species
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The Mexican gray wolf , also known as the lobo, is a subspecies of gray wolf native to the Sierra Madre(马德雷山脉) and the surrounding area of western Mexico, though its range once included the southeastern United States.
It is distinguished by its smaller, narrower skull and its darker pelt(皮毛), which is yellowish-gray and heavily clouded with black over the back and tail. As the smallest subspecies of gray wolf, the Mexican gray wolf varies in size from 50 to 64 inches long (nose to tail), 24 to 32 inches shoulder height, and weighs from 65 to 85 pounds.
Its ancestors were likely the first gray wolves to enter North America, as indicated by its southern range and basal physical and ic characteristics.
Mexican gray wolf
Diet
Lobos kill and eat a variety of prey(被捕食的动物), including elk(麋鹿), mule deer(长尾鹿), white-tailed deer, and javelina(野猪). Mexican wolves are opportunistic, and will scavenge dead elk and deer, cattle carcasses(尸体) and hunter gut piles during hunting season. They occasionally prey on livestock(家畜), and wildlife biologists believe this behavior could be exacerbated by scavenging on livestock carcasses that die from various causes.
Mexican gray wolves are very social animals. They live in packs, which plex social structures that include the breeding adult pair (the alpha male and female) and their offspring(后代). A hierarchy(等级制度) of dominant(统治的) and subordinate(从属的) animals within the pack help it to work as a unit.
Behavior
Mexican wolf pack
Mexican wolf packs are generally fairly small, consisting of an adult alpha pair, a yearling(一岁的动物) or two, and pups of the year. Social cohesion(凝聚力) in the pack is strong. Adults are very tolerant of the growing pups, fee