To begin, the grey squirrel’s existence began in North America, spread across three continents, and could still continue to spread even today. The grey squirrel first originated in two countries in North America. It was found on the west side of the Mississippi River; in the states of Washington, Oregon, California, and Montana. It reached as far north as Canada and claimed residence in the subdivisions of Manitoba, British Columbia, Quebec, New Brunswick, Nova Scotia, Sackatchewan, and Ontario (Fischer, Lawniczak, Pagad). In later years, humans caused this squirrel to be introduced to foreign countries. Between 1876 and 1929, it was unintentionally released to Europe by The London Zoo. People also traveled to northern Italy and brought it over as a pet, where it was then released into the wild (Fischer). As of now, this animal is located in four European countries. These countries are Ireland, Scotland, England, and Italy (Fischer, Lawniczak, Pagad). In the future, the grey squirrel could effortlessly continue to disperse across other countries in Europe. These countries include France and Germany. It is also a threat to Spain and a number of other countries (Fischer). Furthermore, the grey squirrel’s color and size are distinctive traits that separate it from other species. First of all, coloring stays the same when it comes to males and females. Its hue ranges from pale grey to dark grey (Fischer, Lawinczak, Pagad). Its ears, underparts, and tail are all white to pale grey. Ginger-colored fur can be found on this squirrel’s head, hips, feet, and underparts (Lawiczak, Pagad). A natural occurrence among the grey squirrel is melanism, meaning it has an elevated amount of melanin in its pelt (Fischer, Lawinczak, Pa... ... middle of paper ... ...e ability to climb and jump are two other traits that help this mammal survive. Its claws are hard and curved which permits it to scale the tall forest trees; its hindfoot 180 degrees so it can push off and jump incredible distances (Fischer). Works Cited http://www.columbia.edu/itc/cerc/danoff-burg/invasion_bio/inv_spp_summ/Sciurus_carolinensis.htm Fischer, Mary. "Introduced Species Summary Project Grey Squirrel (Sciurus Carolinensis)."Columbia.edu. Columbia University, 2 Mar. 2002. Web. 26 Mar. 2014. http://www.biokids.umich.edu/critters/Sciurus_carolinensis/ Lawniczak, Mara K. "Critter Catalog." BioKIDS. University of Michigan-Ann Arbor, 2002. Web. 27 Mar. 2014. http://www.issg.org/database/species/ecology.asp?si=65 Pagad, Shyama. "Sciurus Carolinensis (mammal)." Issg.org. IUCN/SSC Invasive Species Specialist Group (ISSG), 17 Oct. 2005. Web. 26 Mar. 2014.
3 Apr. 2014. The 'Standard' of the 'Standard'. http://eol.org/pages/323582/details>. Evans, Arthur V., Rosser W. Garrison, Neil Schlager, and Michael Hutchins. Grzimeks' Animal Life Encyclopedia.
United States Department of the interior Fish And Wildlife Service, . North American Fauna. 2012.
Chipmunks have short, dense body fur. It is the same color for males and females. This is a reddish-brown with black and white hairs. The cheeks and sides of the body are grayish-tan to tawny brown.
Wright, J. "Animal Diversity Web." ADW: Tardigrada: INFORMATION. University of Michigan, n.d. Web. 21 Feb. 2014.
Mammals of Florida. Miami, Florida: Windward Publishing. 3. Land, Darrell, and Sharon K. Taylor. 1998.
U.S. Department of the interior, National Park Service. (2013). Endangered Species. Retrieved from website: http://www.nature.nps.gov/biology/endangeredspecies/index.cfm
Works Cited Bates, D. (1957, December 17). Letter from Roy Wilkins. Little Rock, Arkansas, United States of America. Beals, M. P. (1994). The Species of the World.
Holcomb, D. 2005. "Pseudoryx nghetinhensis" (On-line), Animal Diversity Web. Accessed March 14, 2014 at http://animaldiversity.ummz.umich.edu/accounts/Pseudoryx_nghetinhensis/
They are so well adapted to arboreal life that they cannot place their feet on
The likelihood of the four-toed hedgehog going extinct is very improbable. They have an extensive range and are very stable in regards to their wildlife population. They continue to grow in the wild and animal experts have not seen any alarming declines in the population rates. Hence, they have a minimal conservation status. But with the four-toed hedgehog’s development into a popular exotic household pet, there have been some concerns about the threatening of the native populations in Africa. Luckily, there is a breeding stock that is present in the United States that supplies this pet demand. Furthermore, it is prohibited to transport the four-toed hedgehog animals out of Africa to the pet trade market. These regulations allow for the native populations to flourish (Nichols 2014)
Niskern, Diana. Invasive species. Washington, D.C. (101 Independence Ave., S.E.): Science Reference Section, Science, Technology, and Business Division, Library of Congress, 2004.
"Rodents." Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 29 July 2010. Web. 8 Mar. 2014.
The fur of the Siberian tiger is long, thick and yellow with dark black stripes running through it. The coat of this animal is reddish colored in the summer months. The underside of the Siberian tiger is bright white, and the tail area is white and black.
Sikes, Roberts. and William L. Gannon. "Guidelines of the American Society of Mammalogists for the Use of Wild Mammals in Research." Journal of Mammalogy 92.1 (Feb. 2011): 235-253. Academic Search Premier. EBSCO. Web. 5 Oct. 2011.