- [Wiki]
http://en.wikipedia.org/wiki/Trichechus_manatus.
- [AnAge]
http://genomics.senescence.info/species/entry.php?species=Trichechus_manatus.
- [Kooy2010]
Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
Cambridge Univ. Press, Cambridge.
- [MarmOSch1996]
Marmontel, M., O'Schea, T. J., Kochman, H. I., and Humphrey, S. R. (1996).
Age determination in manatees using growth-layer-group counts in
bone.
Mar. Mamm. Sci., 12:54--88.