Bottlenose dolphin  (Tursiops truncatus)

Beak: The bill of a bird. In cetacea (whales and dolphins): the elongated forward part of the head, comprising the lower jaw and upper jaw or 'rostrum'.
Cephalopods: From the Greek for ‘head-foot', a class of molluscs that occur only in marine habitats. All species have grasping tentacles, and either an internal or external shell. Includes nautiloids, cuttlefish, squids, octopuses, and extinct ammonites and belemnites.
Cetacean: A group comprising all whale species, therefore including dolphins and porpoises.
Dorsal fin: The unpaired fin found on the back of the body of fish, or the raised structure on the back of most cetaceans.
Echolocation: Detecting objects by reflected sound. Used for orientation and detecting and locating prey by bats and cetacea (whales and dolphins).
Gestation: The state of being pregnant; the period from conception to birth.
Invertebrates: Animals with no backbone.

1. IUCN Red List (July, 2009)
   http://www.iucnredlist.org
   
2. Cawardine, M., Hoyt, E., Fordyce, R.E. and Gill, P. (1998) Whales and Dolphins, The Ultimate Guide to Marine Mammals. Harper Collins Publishers, London.
   
3. CITES (March, 2008)
   http://www.cites.org
   
4. Bern Convention (October, 2002)
   http://www.ogm.gov.tr/Bern.htm
   
5. UK BAP (June, 2002)
   http://www.ukbap.org.uk/UKPlans.aspx?ID=337
   
6. Cawardine, M. (1995) Whales, Dolphins and Porpoises. Dorling Kindersley, London.
   
7. Animal Diversity Web (June, 2002)
   http://animaldiversity.ummz.umich.edu/accounts/tursiops/t._truncatus$narrative.html
   
8. MacDonald, D. (2001) The New Encyclopedia of Mammals. Oxford University Press, Oxford.
   
9. Dolphin Fund (July, 2009)
   http://www.dolphinfund.eu/en/bottlenose_dolphin/index.htm
   
10. WDCS (June, 2002)
    http://www.wdcs.org/dan/publishing.nsf/allweb/4BE4E4DD1F6DF314802568F8004F381E