References

http://naturescrusaders.files.wordpress.com/2010/05/woodland-caribou.jpg

http://www.bio.davidson.edu/people/vecase/Behavior/Spring2008/Stegemann/Assets/This%20is%20a%20Caribou%20J.Taylor.jpg

http://www.bio.davidson.edu/people/vecase/Behavior/Spring2008/Stegemann/Assets/caribou%20hooves.jpg

https://d2l.cbe.ab.ca/d2l/lms/content/viewer/main_frame.d2l?ou=145125&tId=1606787

http://www.sitopia.com.au/photogallery/IMG_4957.JPG

www.calgaryzoo.org

http://www.map-of-north-america.us/north-america-map.gif

http://www.cbc.ca/thisisthat/pic_wonder_porcupine_caribou_herd_lg.jpg

http://newsimg.bbc.co.uk/media/images/45899000/jpg/_45899826_woodland_johnnagy.jpg