http://www.biologicaldiversity.org/programs/biodiversity/elements_of_biodiversity/extinction_crisis/
~ "THE EXTINCTION CRISIS." The Extinction Crisis. N.p., n.d. Web. 08 Dec. 2013
http://2polarities.org/raise-awareness/
"2POLARITIES." 2POLARITIES RSS. N.p., n.d. Web. 11 Dec. 2013.
"2POLARITIES." 2POLARITIES RSS. N.p., n.d. Web. 11 Dec. 2013.
http://www.popularmechanics.com/science/environment/recently-extinct-animals-list-470209#slide-4
"Extinct in Our Lifetime — 11 Species We've Lost Forever." Popular Mechanics. N.p., n.d. Web. 10 Dec. 2013.
"Extinct in Our Lifetime — 11 Species We've Lost Forever." Popular Mechanics. N.p., n.d. Web. 10 Dec. 2013.
http://www.speciesalliance.org/facts.php
Specified, Not. "Species Alliance." Species Alliance. Species Alliance, 8 Apr. 2009. Web. 17 Dec. 2013.
Specified, Not. "Species Alliance." Species Alliance. Species Alliance, 8 Apr. 2009. Web. 17 Dec. 2013.
http://www.endangeredspecie.com/Interesting_Facts.htm
Kurpris, Lauren. "Facts Profiles." Facts Profiles. Endangered Specie, Mar.-Apr. 2002. Web. 17 Dec. 2013.
Kurpris, Lauren. "Facts Profiles." Facts Profiles. Endangered Specie, Mar.-Apr. 2002. Web. 17 Dec. 2013.
http://www.dosomething.org/tipsandtools/11-facts-about-endangered-species
Gordon, Jayla S. "11 Facts About Endangered Species." Do Something. Do Something.org, 24 Aug. 2007. Web. 14 Dec. 2013.
Gordon, Jayla S. "11 Facts About Endangered Species." Do Something. Do Something.org, 24 Aug. 2007. Web. 14 Dec. 2013.
http://wwf.panda.org/about_our_earth/biodiversity/biodiversity/
"How Many Species Are We Losing?" WWF. WWFGlobal, 7 June 2009. Web. 16 Dec. 2013.
"How Many Species Are We Losing?" WWF. WWFGlobal, 7 June 2009. Web. 16 Dec. 2013.