Ainley, David G. “Penguin.” World Book Advanced. World Book, 2013. Web.  21 May
     2013.
“Climate of Antarctica.” Wikipedia, the Free Encyclopedia. N.p., n.d. Web. 23 May 2013.
     <https://en.wikipedia.org/wiki/Climate_of_Antarctica>.
“Emperor Penguin.” Wikipedia, the Free Encyclopedia. N.p., n.d. Web. 9 May 2013.
     <http://en.wikipedia.org/wiki/Emperor_Penguin>. Locked and protected article,
     credible.
The Encyclopedia Americana. Danbury, CT: Grolier, 1991. Print.
Lanting, Frans, and Christine K. Eckstrom. Penguin. Köln: Taschen, 1999. Print.
Penguin Pushes Friend. N.d. Photograph. Buzz Feed. Web. 24 May 2013. <http://s3-
     ec.buzzfed.com/static/enhanced/terminal05/2012/1/20/14/anigif_enhanced-buzz-
     9294-1327087784-34.gif>.
Penguin Slip and Slide. N.d. Photograph. Web. 29 May 2013. <http://s3-
     ec.buzzfed.com/static/enhanced/web05/2012/1/20/14/anigif_enhanced-buzz-25618-
     1327086318-31.gif>.
Penguin Slips #1. N.d. Photograph. Buzz Feed. Web. 24 May 2013. <http://s3-
     ec.buzzfed.com/static/enhanced/web04/2012/1/20/13/anigif_enhanced-buzz-26937-
     1327085804-8.gif>.
“Penguin.” Wikipedia, the Free Encyclopedia. Ed. Wikipedia. N.p., n.d. Web. 9 May 2013.
     <http://en.wikipedia.org/wiki/Penguin>. Locked and protected article, credible.
Penguins Running Away. N.d. Photograph. Buzz Feed. Web. 24 May 2013. <http://s3-
     ec.buzzfed.com/static/enhanced/web03/2012/1/20/13/anigif_enhanced-buzz-15412-
     1327085582-9.gif>.
Superhero Penguins. N.d. Photograph. Web. 29 May 2013. <http://s3-
     ec.buzzfed.com/static/enhanced/terminal05/2012/1/20/14/anigif_enhanced-buzz
     9348
     1327086367-35.gif>.
“White-flippered Penguin.” Wikipedia, the Free Encyclopedia. N.p., 13 Apr. 2008. Web.
     20 May 2013. <http://en.wikipedia.org/wiki/White-flippered_Penguin>. <b>Could not
     find any other information on this penguin</b>
The World Book Encyclopedia. Chicago, IL: World Book, 2009. Print.

Penguin slip and slide