Endangered Mammals - Levels Of Endangerment, The Black-footed Ferret, Northern Idaho Ground Squirrel, Wolves, Bears And Pandas

The majority of threatened and endangered mammals are imperiled for the same reasons as other biological species—habitat destruction, pollution, competition with invasive species, and so on. However, some mammals have also been intentionally killed-off by humans. For example, in the nineteenth century, the quagga of southern Africa was hunted to extinction because it competed with sheep for grazing land. Similarly, in the late nineteenth and early twentieth centuries, the thylacine, or Tasmanian tiger, was driven to extinction through hunting, in response to its attacks on domestic sheep.

Other mammal species have been driven to endangerment or extinction because they are seen as dangerous. Large predators such as grizzly bears, wolves, and mountain lions are endangered at least partly for this reason. Changing attitudes have led to interest in preserving all species, and conservation measures have allowed several predatory mammals to recover. As their populations increase, however, encounters with humans are also becoming more common.

• In California, following a ban on mountain lion hunting, reports of mountain lions rose through the 1990s. In January 2004 a mountain lion killed one bicyclist and severely injured a second in southern California. The mountain lion was later found and shot. In 114 years, California has reported a total of fourteen mountain lion attacks, of which six were fatal.
• In Yosemite National Park in California, black bears have increasingly confronted park visitors, causing significant damage and occasional injury. However, biologists attribute the incidents not to aggressive bears but to careless park visitors. In 2001 park officials killed a female bear, the mother of two cubs, because she was allegedly teaching her cubs to raid cars, campsites, and picnic areas for food.
• In 2000 biathlete Mary Beth Miller was mauled to death by a black bear as she ran along a wooded path during her training routine in Quebec, Canada. The tragedy ignited controversy over attempts by Canadian officials to protect the species, including the cancellation of an annual bear hunt.