The Pygmy Rabbit, Brachylagus idahoensis is a North American rabbit, and is one of only two rabbit species in America to dig its own burrow. The Pygmy Rabbit differs significantly from species within either the Lepus or Sylvilagus genera and is generally considered to be within the monotypic genus Brachylagus. Although it is listed as an endangered species in the Colombia Basin of the United States, the IUCN lists the species as lower risk. This is because the Columbia Basin population is a genetically distinct isolated relic well on its way to evolving into a distinct subspecies, whereas the IUCN only considers species as a whole. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla Subregnum Parazoa Porifera (sponges) Subregnum Agnotozoa Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Eutheria (includes extinct ancestors)/Placentalia (excludes extinct ancestors) Afrosoricida Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Dinocerata (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata (extinct) Perissodactyla... Families Leporidae Ochotonidae The Lagomorphs, order Lagomorpha, are an order of mammals of which there are two families, Leporidae (hares and rabbits), and Ochotonidae (pikas). ... Genera Pentalagus Bunolagus Nesolagus Romerolagus Brachylagus Sylvilagus Oryctolagus Poelagus Caprolagus Pronolagus Lepus Leporids are the approximately 50 species of rabbits and hares which form the family Leporidae. ... In biology, binomial nomenclature is the formal method of naming species. ... Political highlights of North America North America is the third largest continent in area and the fourth ranked in population. ... Genera Pentalagus Bunolagus Nesolagus Romerolagus Brachylagus Sylvilagus Oryctolagus Poelagus Rabbits are small mammals in the family Leporidae, found in many parts of the world. ... Lepus is Latin for hare. ... Species Sylvilagus aquaticus Swamp Rabbit Sylvilagus auduboni Desert Cottontail Sylvilagus bachmani Brush Rabbit Sylvilagus brasiliensis Forest Rabbit Sylvilagus cunicularis Mexican Cottontail Sylvilagus dicei Dices Cottontail Sylvilagus floridanus Eastern Cottontail Sylvilagus graysoni Tres Marias Rabbit Sylvilagus insonus Omilteme Cottontail Sylvilagus mansuetus San Jose Brush Rabbit Sylvilagus nuttallii Mountain Cottontail Sylvilagus... The World Conservation Union or International Union for Conservation of Nature and Natural Resources (IUCN) is an international organization dedicated to natural resource conservation. ...

The Pygmy Rabbit is the smallest Leporid in North America, with mean adult weights from 375 to about 500 grams (0.83 to 1.1 pounds), and a body length from 23.5 to 29.5 centimeters (9.3 to 11.6 inches), females are slightly larger than males. The pygmy rabbit is distinguishable from other Leporids by its small size, short ears, gray color, small hind legs, and lack of white fur on the tail.

Pygmy rabbits are typically found in areas of tall, dense sagebrush (Artemisia spp.) cover, and are highly dependent on sagebrush to provide both food and shelter throughout the year. The historic distribution of the pygmy rabbit included much of the semi-arid, shrub steppe region of the Great Basin and adjacent intermountain zones of the conterminous western United States, and included portions of Montana, Idaho, Wyoming, Utah, Nevada, California, Oregon, and Washington. Binomial name Artemisia tridentata Nutt. ... A steppe in Western Kazakhstan in early spring In physical geography, a steppe (Russian степь or step and pronounced in English as step) is a plain without trees (apart from those near rivers and lakes); it is similar to a prairie, although a prairie is generally considered as being dominated by... Map showing the Great Basin in orange The Great Basin is a large, arid region of the western United States, commonly defined as the contiguous watershed region, roughly between the Rocky Mountains and the Sierra Nevada, that has no natural outlet to the sea. ... Official language(s) English Capital Largest city Helena Billings Area  Ranked 4th  - Total 147,165 sq. ... Official language(s) None Capital Largest city Boise Boise Area  Ranked 14th  - Total 83,642 sq. ... Official language(s) English Capital Largest city Cheyenne Cheyenne Area  Ranked 10th  - Total 97,872 sq mi  (253,554 km²)  - Width 280 miles (450 km)  - Length 360 miles (580 km)  - % water 0. ... Official language(s) English Capital Largest city Salt Lake City Salt Lake City Area  Ranked 13th  - Total 84,876 sq. ... Official language(s) None Capital Largest city Carson City Las Vegas Area  - Total   - Width   - Length    - % water  - Latitude  - Longitude Ranked 7th 110,567 sq mi  286,367 km² 322 miles  519 km 490 miles  788 km 0. ... Official language(s) English Capital Sacramento Largest city Los Angeles Area  Ranked 3rd  - Total 158,302 sq. ... Official language(s) None Capital Largest city Salem Portland Area  Ranked 9th  - Total 98,466 sq. ... Official language(s) None Capital Olympia Largest city Seattle Area  Ranked 18th  - Total 71,342 sq. ...

The last male purebred Columbia Basin pygmy rabbit, found only in Douglas County, Washington, died March 30, 2006 at the Oregon Zoo in Portland. A crossbreeding program conducted by the Oregon Zoo, Washington State University and Northwest Trek is attempting to preserve the genetic line by breeding surviving females with the Idaho pygmy rabbit. [1] Douglas County is a county located in the state of Washington, USA. As of 2000, the population is 32,603. ... March 30 is the 89th day of the year in the Gregorian Calendar (90th in Leap years). ... 2006 (MMVI) is a common year starting on Sunday of the Gregorian calendar. ... California condor The Oregon Zoo, formerly the Washington Park Zoo, is a zoo west of downtown Portland, Oregon. ... Nickname: City of Roses, Stumptown, Bridgetown Official website: http://www. ... For the state of Washington in the United States, please see Washington. ...

References

• United States Government. Federal Register
• U.S. Fish and Wildlife Service. 2004. Recovery Outline for the Columbia Basin Distinct Population Segment of the Pygmy Rabbit (Brachylagus idahoensis)

External link

• Washington Department of Fish and Wildlife, Pygmy Rabbit