Risso's dolphin  (Grampus griseus)

Crustaceans: Diverse group of arthropods (a phylum of animals with jointed limbs and a hard chitinous exoskeleton) characterised by the possession of two pairs of antennae, one pair of mandibles (parts of the mouthparts used for handling and processing food) and two pairs of maxillae (appendages used in eating, which are located behind the mandibles). Includes crabs, lobsters, shrimps, slaters, woodlice and barnacles.
Echolocation: Detecting objects by reflected sound. Used for orientation and detecting and locating prey by bats and cetacea (whales and dolphins).

1. IUCN Red List (November, 2008)
   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. Council of Europe: Bern Convention (June, 2002)
   http://www.coe.int/t/dg4/cultureheritage/conventions/bern/default_en.asp
   
4. UKBAP (June, 2002)
   http://www.ukbap.org.uk/
   
5. WDCS (June, 2002)
   http://www.wdcs.org
   
6. Cetacea.org. (June, 2002)
   http://www.cetacea.org/rissos.htm
   
7. Macdonald, D.W. (2001) The New Encyclopedia of Mammals. Oxford University Press, Oxford.
   
8. Burnie, D. (2001) Animal. Dorling Kindersley, London.
   
9. Carwardine, M. (1995) Whales, Dolphins and Porpoises. Dorling Kindersley, London.