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Great Basin Collared Lizard

Collared lizards are one of the only lizards that can run using only their hind legs. They are fast with strides up to three times their body length.

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Eastern Collared Lizard

Eastern collared lizards are very alert—and very fast! They’re well adapted to running around their rocky habitats and jump among rocks easily. At top speeds, they run using only their back legs! They have highly powerful jaws capable of delivering a strong bite that can break the skin if captured.

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Common Nighthawk

Male common nighthawks are known for their dramatic “booming” flight display. When flying above the trees, a male will dive towards the ground and abruptly pull out of the dive, sometimes just above the ground. As he flexes his wings downward, the air rushes across his wingtips, making a booming or whooshing sound. The male may dive to impress a female or scare intruders, such as people.

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White-throated Woodrat

The white-throated woodrat is also called a packrat. They will live in burrows, caves, or construct elaborate middens of coarse woody debris, vegetation, and cactus joints. Middens or dens are built at the base of trees, shrubs, and cacti using locally available materials such as spiny plant parts from cholla, prickly pear, mesquite, and catclaw, likely as protection from predators. Middens can get as large as 3 ft/0.9 m high and 10 ft/3 m in diameter.

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American Pika

American pika are very sensitive to temperatures and can die if exposed for brief periods to temperatures greater than 77.9o F/ 25.5o C. They rely on a moderate snowpack to insulate them from extreme cold. Pikas have high energetic demands as they do not hibernate. Therefore they are considered an indicator species for climate change especially temperature extremes and changes in snow.

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Fulvous Harvest Mouse

Fulvous harvest mice nests are usually built 1-3 ft/30-91 cm above the ground often in bushes. These nests can be converted bird nests or created by fulvous harvest mice. The baseball-sized nests are composed of shredded grass and forb stems with one opening.

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Round-leaf four o’clock

The flowers of this four o’clock open before dawn and remain open until mid-morning, just a few hours.

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Bell’s twinpod

Fruits of Bell’s twinpod, are found in pairs giving the plant its name.

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Bighorn Sheep

A male bighorn sheep has horns that can weigh up to 30 lb/14 kg. Rams compete for mating rights by rushing, rearing up, and crashing their horns together. The sound of their ramming can be heard echoing through the mountains.

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