The Petrified Forest National Park is home to a rich array of animal species that thrive in its varied habitats. Here you can ...

As of July 2016, there were 2,389 endangered and threatened species listed in the 50 states. There were 1,353 endangered and threatened animal species listed in the 50 states. There were 1,036 ...

Located in southeastern Utah, Arches National Park’s red-rock wonderland is unlike anything else on Earth. Famous for its jaw-dropping stone formations, the park was officially established in November ...

The average stand age of Engelmann Oak (Quercus engelmannii Greene) on the Santa Rosa Plateau, Riverside County, California, is 80-130 years, with trees older than this being less frequent in number, ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

This review examines seasonal dormancy in various species, including hibernating mammals (excluding bats and bears) and ectotherms. It tests hypotheses on dormancy timing, considering energetic ...

If you find an error in a book in GITenberg, you can report it by clicking the Issues tab in this book’s repository. Please copy-and-paste the entire sentence that ...

As a part of an ongoing project to inventory the helminth parasites of rodents in Mexico, 85 specimens of 2 families of rodents were collected from the Mexican Plateau: Cricetidae (Neotomct sp., ...

All mammals that inhabit the earth today descended from one common ancestor called the Morganucodon—a tiny shrewlike creature that lived alongside the dinosaurs roughly 200 million years ago.

This site displays a prototype of a “Web 2.0” version of the daily Federal Register. It is not an official legal edition of the Federal Register, and does not replace the official print version or the ...

Perognathus californicus is a nocturnal, burrowing rodent and in the mountains of southern California is locally distributed in association with the edge of grasslands. The thermal environment of P.

California is located in the Western United States. Western states typically have large amounts of land owned by the federal government compared to other states. According to the Congressional ...