Sources
"Speciation." Speciation. Berkeley, n.d. Web. 16 Jan. 2015. http://evolution.berkeley.edu/evolibrary/article/0_0_0/evo_40.
Holt Science & Technology Life Science. Austin, TX: Holt, Rinehart and Winston, 2001. Print.
Flying Squirrel Facts http://www.nwf.org/wildlife/wildlife-library/mammals/flying-squirrels.aspx
Holt Science & Technology Life Science. Austin, TX: Holt, Rinehart and Winston, 2001. Print.
Flying Squirrel Facts http://www.nwf.org/wildlife/wildlife-library/mammals/flying-squirrels.aspx