Concept
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Characteristics of the Animal Body
Arctic fox
An arctic fox is a complex animal, well adapted to its environment. It changes coat color with the seasons and has longer fur in winter to trap heat.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Introduction. October 17, 2013."
http://cnx.org/content/m44728/latest/Figure_33_00_01.jpg
OpenStax CNX
CC BY 3.0.