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Canis lupus baileyi - Mexican grey wolf
Range:  Southwestern Unied States and northern Mexico
Size:  50 - 90 lb (23 - 41 kg)

Canis lupus baileyi, a Mexican subspecies of grey wolf, is one of the most endangered canids in the world.  Historically, it occurred over a wide area of northern Mexico and the southern regions of Arizona, New Mexico, and Texas.  Like so many other subspecies of grey wolves, it fell prey to persecution by man.  Poisoned baits were in use by the mid-1800s throughout most of the grey wolf's southern range.  In 1976, the US Fish and wildlife service declared the the Mexican wolf an endangered species.  Afterward, a small number of facilities in the US began a captive breeding effort.  This has proved fairly successful, and there are now approximately 150 Mexican grey wolves in various zoos and wolf sanctuaries.

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Whether Canis lupus baileyi still exists in the wild is a subject of debate.  It is suspected  that it has been extinct in the wild since the late 1980s.  Though unlikely, it is possible that there could still be a few scattered individuals roaming the mountains of northern Mexico.
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Mexican wolf - Image  Monty Sloan

 
Mexican wolves - Image  Monty Sloan
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Arizona and New Mexico contain the currently proposed reintroduction areas for the subspecies.
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Mexican wolves - Image  Monty Sloan

Above three images are © Monty Sloan.
For permission to use or for more information about
wolf photographs please write to Monty Sloan / Wolf Park


Mexican wolf skull - Image  C. Campbell
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The skull of a Mexican grey wolf.
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Photographs and other illustrations (where indicated) are © C. Campbell's NATURAL WORLDS.
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