4. Images Citation
Mulvaney, K. (n.d.). For Polar Bears, Some Places Better Than Others. In
Discovery News. Retrieved November 22, 2013, from
http://news.discovery.com/earth/oceans/polar-bears-some-places-better130831.htm
(n.d.). Retrieved November 22, 2013, from
http://www.minnesotansforglobalwarming.com/m4gw/polar-bears/
Polar Bears. (2012, August 23). Retrieved November 22, 2013, from
http://worldwildlife.org/species/polar-bear
Reproduction and lifecycle. (n.d.). In Polar bear. Retrieved November 22, 2013, from
http://en.wikipedia.org/wiki/Polar_bear