Sources

http://www.crystalinks.com/ayersrock.html

http://library.thinkquest.org/26634/forest/introf.htm

http://mbgnet.mobot.org/sets/rforest/index.htm

http://www.animalsoftherainforest.org

http://pubs.usgs.gov/gip/deserts/types/

http://ihouse.hkedcity.net/~hm1203/biosphere/desert.htm