<p>With fewer than a thousand individuals left, the island gray fox (pictured) may not be able to outfox extinction, according to the new <a id="y2in" title="Wildlife Conservation Society" href="http://www.wcs.org/">Wildlife Conservation Society</a> report "Rarest of the Rare." (See <a id="ecko" title="pictures of the rarest animals in the United States" href="http://ngm.nationalgeographic.com/2009/01/endangered-species/sartore-photography">pictures of some of the rarest species in the United States</a>.)</p><p>The island gray—the smallest fox in the United States—is found only on <a id="b6.u" title="California" href="http://travel.nationalgeographic.com/travel/united-states/california-guide/">California</a>'s Channel Islands (see <a id="t:v_" title="map" href="http://maps.nationalgeographic.com/maps/map-machine#s=r&amp;c=33.42927960728167, -119.3376575410366&amp;z=7">map</a>). The tiny mammal has succumbed to predation from golden eagles as well as diseases from domestic dogs introduced to the islands, experts say. (Related: <a id="df-s" title="&quot;Wild Pig Hunt Aims to Save California Island Foxes.&quot;" href="http://news.nationalgeographic.com/news/2005/03/0316_050316_tvferalpigs.html">"Wild Pig Hunt Aims to Save California Island Foxes."</a>)</p><p>"Extinction is tragic, especially if it is preventable," according to the report, which was released earlier this month. The paper highlights a dozen species listed as critically endangered, and therefore most at risk of extinction, by the International Union for Conservation of Nature.</p><p>The rare species—a mix of mammals, amphibians, reptiles, and birds—will also be featured in the 2010-2011 edition of the WCS book <em><a id="s.qp" title="State of the Wild – a Global Portrait." href="http://www.wcs.org/stateofthewild/">State of the Wild: A Global Portrait</a></em>.</p>

Island Gray Fox

With fewer than a thousand individuals left, the island gray fox (pictured) may not be able to outfox extinction, according to the new Wildlife Conservation Society report "Rarest of the Rare." (See pictures of some of the rarest species in the United States.)

The island gray—the smallest fox in the United States—is found only on California's Channel Islands (see map). The tiny mammal has succumbed to predation from golden eagles as well as diseases from domestic dogs introduced to the islands, experts say. (Related: "Wild Pig Hunt Aims to Save California Island Foxes.")

"Extinction is tragic, especially if it is preventable," according to the report, which was released earlier this month. The paper highlights a dozen species listed as critically endangered, and therefore most at risk of extinction, by the International Union for Conservation of Nature.

The rare species—a mix of mammals, amphibians, reptiles, and birds—will also be featured in the 2010-2011 edition of the WCS book State of the Wild: A Global Portrait.

Photograph by George H.H. Huey, Corbis

Pictures: "Rarest of the Rare" Species Named

A giant bat and a tiny fox are among 12 of the world's most endangered species recently highlighted by the Wildlife Conservation Society.

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