Category Archives: Mammals

Antelope Ground Squirrel

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Antelope ground squirrels (Ammospermophilus leucurus) are hyperactive. They never stop moving! While exploring Grimes Point Archeological Site along Nevada Highway 50 east of Fallon NV, Leonard and I came upon this cute little guy (gal?). We sat down and it … Continue reading

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Bambi and Thumper

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Last fall Leonard discovered a domestic rabbit (Oryctolagus cuniculus) in our barn (near Lookout CA, Modoc County). With no nearby houses or knowledge of local people with rabbits, we had no idea how the rabbit ended up in our barn. … Continue reading

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Roosevelt Elk Calves

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While driving along Endert’s Beach Road south of Crescent City CA (Del Norte County), Leonard and I were surprised to see a small herd of Roosevelt elk (Cervus canadensis roosevelti) cows and their calvesĀ  in a field next to the … Continue reading

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Deer and Antelope Play

Leonard and I really do live “where the deer and the antelope play”. These “antelope” of musical fame are actually pronghorn (Antilocapra americanna), not antelope, as they are commonly called. But we all incorrectly call them antelope. At the Ash … Continue reading

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Coues Whitetail

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The coues whitetail (Odocoileus virginianus couesi) is a subspecies of the common eastern whitetail (Odocoileus virginianus). It is a denizen of mountain ranges in Arizona, New Mexico and Mexico. It can be found between 3,500 and 9,000+ feet in elevation … Continue reading

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Bergmann’s Rule

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Bergmann’s Rule (the third ecographic rule) was formulated in 1847 by Karl (also seen as Carl) Bergmann (1814 – 1865), a German biologist. It states that the same or closely related species tend to be larger in colder climates. It … Continue reading

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Allen’s Rule

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There are three principal Ecographic Rules for terrestrial environments: Allen’s Rule, Gloger’s Rule and Bergmann’s Rule. Ecographic Rules are concerned with variations in traits (mainly morphological) of organisms over goegraphical gradients. Allen’s Rule was discussed previously. (see “Gloger’s Rule” 10-10-16) … Continue reading

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