1. http://medical-dictionary.thefreedictionary.com/ -for definitions
2. http://www.worldwildlife.org/species/sumatran-tiger
3. http://www.tigertrust.info/sumatran_tiger_tiger.asp
4. http://www.tigersincrisis.com/sumatran_tiger.htm
5. http://www.tigers.ca/Tigerworld/W3A1.html
2. http://www.worldwildlife.org/species/sumatran-tiger
3. http://www.tigertrust.info/sumatran_tiger_tiger.asp
4. http://www.tigersincrisis.com/sumatran_tiger.htm
5. http://www.tigers.ca/Tigerworld/W3A1.html