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Harris's antelope squirrel
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Harris's antelope squirrel : ウィキペディア英語版
Harris's antelope squirrel

Harris's antelope squirrel (''Ammospermophilus harrisii'') is a species of rodent in the family Sciuridae. It is found in Arizona and New Mexico in the United States, and in Sonora in Mexico. They are adapted to hot weather conditions including a technique called "heat dumping". They have a wide ranging diet, including both vegetation, insects, small rodents and carrion.
==Taxonomy and description==

The species is named after Edward Harris. Examples of ''A. harrisii'' have distinctive markings on their grey fur, with brown highlights on the sides and legs and a white strip down the side of the torso and encircling their eyes.〔 Their fur grows longer in the winter than it does in the summer.〔 Adults weigh around , and measure minus their tail, which measures .〔(【引用サイトリンク】url=http://www.desertmuseum.org/kids/oz/long-fact-sheets/Harris's%20Antelope%20ground%20Squirrel.php )〕 They can be mistaken for chipmunks.〔
''A. harrisii'' has a high body temperature of 97-107 degrees Fahrenheit (36.7 - 41.6 °C) 〔 In order to protect itself from the heat of the Sonoran Desert, ''A. harrisii'' carries their tails over their bodies in order to provide shade.〔 ''A. harrisii'' also participates in a heat reduction method where individuals move into shaded positions and lie spread eagled against the ground. This is referred to as "heat dumping".〔 They are active during the day, and do not sweat but otherwise reduce temperature by salivating.〔
The optimum reproductive period for ''A. harrisii'' is between February and March although mating can take place between December and June. Gestation lasts thirty days, and females usually have one litter per year with an average of 6.5 pups. Newborns grow to adult size at around 217 days after birth. Both males and females reach sexual maturity during the first year.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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