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Added by yongli on 08/01/2016 - 14:28, last changed on 02/06/2019 - 01:07

North American Beaver

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The North American beaver ( Castor canadensis ) is native to Colorado, and its role as both an environmental engineer and a keystone species has profoundly impacted the state’s ecology and history. Although their populations today are low, beavers continue to shape Colorado’s environments. ...

Bighorn Sheep

Added by yongli on 05/09/2016 - 15:43, last changed on 02/16/2018 - 11:38
The Rocky Mountain bighorn sheep ( Ovis Canadensis ) is one of four native sheep species that inhabit the North American continent and the only one that resides in Colorado. Bighorn sheep play a key role in bringing tourist and revenue into the state. Characteristics and Habits Known for their...

Chronic Wasting Disease

Added by yongli on 08/02/2016 - 15:37, last changed on 02/08/2019 - 01:07
Chronic wasting disease (CWD) is a contagious neurological disease that affects members of the deer family, causing erratic behavior and weight loss that eventually results in death. CWD is classified as a transmissible spongiform encephalopathy (TSE), a family of diseases that includes bovine...

Colorado Parks and Wildlife

Added by yongli on 05/03/2016 - 16:02, last changed on 12/12/2018 - 16:04
Colorado Parks and Wildlife (CPW) is the state agency that manages wildlife and oversees outdoor recreation in Colorado. The agency operates the state park system, administers hunting and fishing licenses, conducts research on chronic wasting disease and other subjects related to maintaining...

Colorado’s Second Fur Trade

Added by yongli on 10/06/2016 - 16:33, last changed on 08/25/2017 - 18:01
Colorado’s “Second Fur Trade” was typified by the burgeoning popularity of mink fur coats, a luxury item that enjoyed great popularity during the 1930s, 1940s, and 1950s. As one of Colorado’s leading productive industries for several decades, mink farming is an example of the state’s transition...

Elk Culling

Added by yongli on 05/10/2016 - 10:56, last changed on 12/28/2017 - 13:41
Culling is a wildlife management practice involving the lethal reduction of a species. It has historically been used as a means to control ungulate (hoofed animal) populations in Colorado and throughout the United States. As recently as 2009, it has been used in combination with other population...


Added by yongli on 02/21/2017 - 15:32, last changed on 01/11/2018 - 01:07
Moose ( Alces alces shirasi ) are the largest member of the deer family, with individuals reaching weights of between 800 and 900 pounds. The subspecies of moose found in Colorado, as well as throughout the southern Rocky Mountains , is the Shiras subspecies. This subspecies is smaller than that of...

Mountain Lion

Added by yongli on 02/21/2017 - 14:07, last changed on 12/28/2017 - 13:43
The mountain lion ( Puma concolor )—also known as the cougar and puma—is the largest wild felid, or member of the cat family, in Colorado. Mountain lions are obligate carnivores, meaning that only animal flesh can meet their bodies’ nutritional needs. They inhabit much of Colorado’s foothills and...

Mountain Pine Beetle

Added by yongli on 10/30/2015 - 13:46, last changed on 12/31/2018 - 01:07
Forests in central Colorado look very different today than they did twenty years ago: millions of trees have been killed by mountain pine beetles ( Dendroctonus ponderosae , fig. 1). The mountain pine beetle is a native insect that is roughly the size of a grain of rice (fig. 2), but large...

Mule Deer

Added by yongli on 02/21/2017 - 14:34, last changed on 01/15/2019 - 01:07
Mule deer ( Odocoilus hemionus ) belong to the Cervidae family, hoofed mammals that have antlers, which also include elk ( Cervus elaphus ), moose ( Alces alces ), and caribou ( Rangifer tarandus ). There are numerous sub-classifications of deer, but the most distinctive include mule deer and white...

Rocky Flats Nuclear Facility

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Added by Greg Vogl on 02/04/2015 - 09:22, last changed on 09/09/2018 - 01:07
Rocky Flats is a gravelly, narrow floodplain cut by gullies as it slopes from the Rocky Mountain foothills into the plains just northwest of Denver . Unlike many places, its name is known more for what was manufactured there than for its geology. Today it is a national wildlife refuge, but for...

Rocky Mountain Elk

Added by yongli on 08/02/2016 - 15:22, last changed on 08/31/2017 - 06:35
Rocky Mountain Elk ( Cervus canadensis nelsoni ) are large mammals in the deer family that live in Colorado’s forests. Revered as a symbol of the American West, they have played an important role in Colorado’s ecology and natural history. Each year, millions of people travel to Rocky Mountain...

Sage grouse

Added by yongli on 05/17/2016 - 11:07, last changed on 12/28/2017 - 13:41
Sage grouse are a group of chicken-sized birds with a unique breeding behavior and dependence on sagebrush shrubs (genus Artemisia ) for food and shelter throughout their life cycle. In the last century, human population expansion throughout western North America has reduced the amount of sagebrush...

State Animal

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Added by Greg Vogl on 08/14/2014 - 08:22, last changed on 08/31/2017 - 06:51
The Rocky Mountain Bighorn Sheep , Ovis canadensis , was adopted as the official state animal on May 1, 1961 by an act of the General Assembly. The Rocky Mountain Bighorn Sheep is found only in the Rockies, usually above timberline in rugged mountainous areas. The male sheep is three to three and a...

State Bird

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Added by Greg Vogl on 02/17/2015 - 17:05, last changed on 08/31/2017 - 06:51
The Lark Bunting, Calamospiza melanocoryus Stejneger , was adopted as the official state bird on April 29, 1931. The Lark Bunting is a migrant bird. Flocks arrive in April and inhabit the plains regions and areas up to 8,000 feet in elevation. They fly south again in September. The male bird is...

State Fish

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Added by Greg Vogl on 02/13/2015 - 17:20, last changed on 08/31/2017 - 06:51
The Greenback Cutthroat Trout, Oncorhynchus clarkii somias , was adopted as the official state fish on March 15, 1994, by an act of the General Assembly. The Rainbow Trout was considered the state fish from 1954 until 1994 but was never officially adopted. The Greenback Cutthroat Trout was at one...


Added by yongli on 05/10/2016 - 10:13, last changed on 04/08/2019 - 01:07
Sunflowers, several species of which are native to Colorado, are grown as ornamental garden plants, for their edible seeds, and as commercial crops for confection seeds and oil. Sunflowers offer many ecological and economic benefits to commercial agriculture because they demand few inputs, such as...
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