Golden toad  (Incilius periglenes)

Invertebrates: Animals with no backbone.
Larvae: Stage in an animal's lifecycle after it hatches from the egg. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
Metamorphosis: An abrupt physical change from the larval to the adult form.
Sexual dimorphism: When males and females of the same species differ in appearance.

1. IUCN Red List (May, 2009)
   http://www.iucnredlist.org
   
2. Animal Diversity Web (February, 2002)
   http://animaldiversity.ummz.umich.edu/accounts/bufo/b._periglenes$narrative.html
   
3. CITES (May, 2009)
   http://www.cites.org
   
4. Pounds, J.A., Fogden, P.L. and Campbell, J.H. (1999) Biological response to climate change on a tropical mountain. Nature, 398: 611 - 615.
   
5. Pounds, J.A., Fogden, M.P.L., Savage, J.M. and Gorman, G.C. (1997) Tests of null models for amphibian declines on a tropical mountain. Conservation Biology, 11 (6): 0.
   
6. IUCN/SSC Amphibian Specialist Group (March, 2008)
   http://www.amphibians.org
   
7. Amphibia Web (February, 2002)
   http://elib.cs.berkeley.edu/aw/declines/