Bibliography

http://www.wikipedia.com

http://www.ucmp.berkeley.edu/exhibits/biomes/grasslands.php

http://www.defenders.org/grasslands/tropical-grasslands

https://php.radford.edu/~swoodwar/biomes/?page_id=105

http://www.bornfree.org.uk/wild-crew/habitat-conservation/habitat/savannah-grasslands/