Summary[edit] Description: English: Long-eared chipmunk (Neotamias quadrimaculatus), Plumas County, California. Date: 17 October 2015, 22:35:56. Source: Own work. Author: Connor Long. Permission (Reusing this file): You are free to use this image for any purpose as long as you attribute me, Connor Long, as the creator of this image in a manner that is clearly visible and easily accessible in the same document in which the image is used (Examples of "document" include but are not limited to: video, webpage, PowerPoint presentation, etc).
James St. John|sourceurl=https://flickr.com/photos/47445767@N05/18200384984%7Carchive=https://web.archive.org/web/20200602113712/https://www.flickr.com/photos/47445767@N05/18200384984%7Creviewdate=2019-12-10 01:45:47|reviewlicense=cc-by-2.0|reviewer=FlickreviewR 2
Wikimedia Commons
Summary[edit] Description: Neotamias rufus (Hoffmeister & Ellis, 1979) - Hopi chipmunk in Utah, USA. (photo by Mary Ellen St. John) Mammals are the dominant group of terrestrial vertebrates on Earth today. The group is defined based on a combination of features: endothermic (= warm-blooded), air-breathing, body hair, mother's milk, four-chambered heart, large brain-to-body mass ratio, two teeth generations, differentiated dentition, and a single lower jawbone. Almost all modern mammals have live birth - exceptions are the duck-billed platypus and the echidna, both of which lay eggs. Mammals first appear in the Triassic fossil record - they evolved from the therapsids (mammal-like reptiles). Mammals were mostly small and a minor component of terrestrial ecosystems during the Mesozoic. After the Cretaceous-Tertiary mass extinction at 65 million years ago, the mammals underwent a significant adaptive radiation - most modern mammal groups first appeared during this radiation in the early Cenozoic (Paleocene and Eocene). Three groups of mammals exist in the Holocene - placentals, marsupials, and monotremes. Other groups, now extinct, were present during the Mesozoic. Classifiation: Animalia, Chordata, Vertebrata, Mammalia, Rodentia, Sciuridae Locality: Canyonlands National Park, southeastern Utah, USA. Date: 3 September 2011, 17:35. Source: Neotamias rufus (Hopi chipmunk) (Canyonlands National Park, Utah, USA). Author: James St. John.
Summary[edit] Description: English: Juvenile Sonoma chipmunk (Tamias sonomae) hiding in a dead tree in Samuel P. Taylor State Park, Marin County, California. Date: 1 May 2017, 09:43:09. Source: Own work. Author: Frank Schulenburg.
Summary[edit] Description: English: Eastern chipmunk (Tamias striatus) in New York Botanical Garden's Rock Garden. Date: 27 June 2018, 13:13:16. Source: Own work. Author: Rhododendrites. Camera location40° 51′ 50.5″ N, 73° 52′ 55″ WView all coordinates using: OpenStreetMap 40.864027; -73.881944.
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This Siberian Chipmunk, Tamias sibiricus, was photographed in China, as part of a research project utilizing motion-activated camera-traps.
You are invited to go WILD on Smithsonian's interactive website, Smithsonian WILD, to learn more about the research and browse photos like this from around the world.
siwild.si.edu/wild.cfm?fid=5179466693 "