References

 

Marsh, et.al. Ecology and Conservation of the Sirenia: Dugongs and Manatees. Cambridge University Press, 2011.

Ripple, Jeff. Manatees and Dugongs of the World. Voyageur Press, 1999.

Lourie, Peter. The Manatee Scientists: Saving Vulnerable Species. Houghton Mifflin Harcourt, 2011.

Alexander. Caitlind L. Manatees: Mermaids of the Sea: Educational Version. Learning Island, 2004.

Walker, Sally M. Manatees. Lerner Publications, 1999.

http://en.wikipedia.org/wiki/Manatee

http://seaworld.org/en/animal-info/animal-infobooks/manatee/

http://myfwc.com/manatee

http://www.savethemanatee.org/

http://www.smithsonianmag.com/science-nature/14-fun-facts-about-manatees-180950308/?no-ist