WELLINGTON, Colo., Nov. 5 /PRNewswire/ -- The endangered black-footed ferrets inhabit prairie dog towns in the western U.S. This rare carnivore feeds on prairie dogs. The prairie dogs are very susceptible to plague and often entire population die-offs in towns occur. The U.S.

The European mink, Mustela lutreola, is a species catalogued as in danger of extinction, due to the large decline in their population over the past century.

The stoats at an ancient ruined priory in Northern England appear to be preparing for a white Christmas. The mammals have already changed to their white winter coats, The Daily Mail reports.

By CHET BROKAW INTERIOR, S.D. -- On the grasslands a few miles from the pinnacles and spires of Badlands National Park, federal wildlife officials have been waging a war since spring to save one of the country's largest colonies of endangered black-footed ferrets.

Black-footed ferrets at the Smithsonian's National Zoo have birthed two kits sired by males who died in 1999 and 2000.