Ichthyology – branch of zoology devoted to fish (including sharks)
Meristics – branch of ichthyology that relates to counting features of fish, such as the number of fins or scales
What is a shark?
A shark, also called a "selachimorph", can be described as all of the following:
Animal – multicellular, eukaryotic organism of the kingdom Animalia or Metazoa. An animal's body plan eventually becomes fixed as it develops, although some types of animal undergo a process of metamorphosis later on in their life. Most kinds of animal are motile, meaning they can move spontaneously and independently.
Chordate – Chordates (phylum Chordata) are animals which are either vertebrates or one of several closely related invertebrates.
Fish – gill-bearing aquatic vertebrate (or craniate) animal that lacks limbs with digits.
Chondrichthye (cartilaginous fish) – jawed fish with paired fins, paired nares, scales, two-chambered hearts, and skeletons made of cartilage rather than bone.
Elasmobranch – member of the subclass Elasmobranchii, which includes sharks, rays, and skates.
Predator – organism that attacks and feeds on prey (the organism that is attacked).
Apex predator – some shark species are apex predators, that is, predators with no predators of their own, residing at the top of their food chain.
Jacques-Yves Cousteau – French naval officer, explorer, ecologist, filmmaker, innovator, scientist, photographer, author and researcher who studied the sea and all forms of life in water including sharks
Eugenie Clark – American ichthyologist researching poisonous fish and the behavior of sharks; popularly known as The Shark Lady
Leonard Compagno – international authority on shark taxonomy, best known for 1984 catalog of shark species (FAO)
Ben Cropp – Australian former shark hunter, who stopped in 1962 to produced some 150 wildlife documentaries
Richard Ellis – American marine biologist, author, and illustrator.
Rodney Fox – Australian film maker, conservationist, survivor of great white shark attack and one of the world's foremost authorities on them