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	Cookiecutter shark - Wikipedia, the free encyclopedia
		The Cookiecutter shark, Isistius brasiliensis (also known as the Cigar shark or Luminous shark) is a small rarely-seen dogfish shark.
		The underside of the shark is bioluminescent, glowing a pale blue-green that matches the background light from the ocean's surface that serves as camouflage to creatures beneath it.
		It is hypothesized that the shark seizes its much larger prey with its jaws, then rotates its body to achieve a highly symmetrical cut.
	en.wikipedia.org /wiki/Cookie_cutter_shark (277 words)

	Shark Glossary - The World of Sharks
		The cigar shark is also known as the cookiecutter shark (due to its color and shape), the luminous shark (because it emits a green glow from its belly), and the Brazilian shark.
		The cookiecutter is also known as the cigar shark (due to its color and shape), the luminous shark (because it emits a green glow from its belly), and the Brazilian shark.
		Pseudocarcharias kamoharai is a widespread bottom-dwelling Lamniformes (or mackerel shark).
	www.worldofsharks.net /glossary_c.htm (1857 words)

	Shark Glossary - The World of Sharks
		Negaprion brevirostris is a yellowish shark that average 8-10 feet (2.45-3.1 m) long and lives near the surface and at intermediate depths.
		Shark tails are asymmetrical; the upper lobe is larger.
		It is also known as the cookiecutter shark, the cigar shark (due to its color and shape), and the Brazilian shark.
	www.worldofsharks.net /glossary_l.htm (601 words)

	ELASMO.COM Fossil Genera: Isistius - Cookiecutter Sharks
		The Cookiecutter is a small (to 50cm), cigar-shaped shark with a disproportionately large reputation.
		The shark moves vertically through the water column, ranging from 85 to 3,500 meters and is known to feed on squid and crustaceans as well as larger marine vertebrates.
		The cookiecutter apparently implants it's small, spike-like upper teeth then rotates its body, using the lower tooth series to cut a plug of flesh from its victim.
	www.elasmo.com /genera/cenozoic/sharks/isistius.html (647 words)

	Do Giant Cookiecutter Shark Exist?
		Cookiecutters are also interesting in that they emit a luminous green glow from photophores on their bellies.
		The cookiecutter clamps onto its prey's flesh with its jaws and bites down with its huge, sharp teeth on its lower jaw (the upper jaw teeth are much smaller and finer, but still very sharp, and are used to remain attached to the prey).
		Furthermore, sleeper sharks are closely related to the cookiecutter sharks as they reside in the same family, Dalatiidae, so there biting styles and appearance of bites may be similar.
	www.ncf.carleton.ca /~bz050/HomePage.giantcookiecutter.html (729 words)

	sharks
		As several rescuers, believing the shark to be gone, pulled the injured boy to shore, one of the lifesavers reached into the murky water and encountered the shark's jaws still firmly clamped onto Raymond's leg.
		The determined shark hung on even as she was pulled onto the beach and battered repeatedly with a handy surfboard.
		For years the odd crescent-shaped wounds found on cookiecutter victims were believed to be the result of some kind of bacteria or parasite, but the cookiecutter uses his razor-sharp teeth to gouge out a 2-inch mouthful of flesh at a time, leaving the victim scarred but still swimming.
	home1.gte.net /~lilbun/ts/sharks.html (1484 words)

	WhaleTimes Fishin' for Facts: Cookiecutter Shark
		Cookiecutters are one of the smaller species of sharks.
		A cookiecutter shark uses its lips to attach to the prey.
		A cookiecutter shark preys (or snacks on) megamouth, basking and whale sharks.
	www.whaletimes.org /cookiecutter.htm (408 words)

	Florida Museum of Natural History Ichthyology Department (Site not responding. Last check: 2007-11-03)
		Sharks are hatched or born as juveniles, or smaller versions of the adult.
		A baby shark is referred to as a pup while a male shark is called a bull and a female shark is called a female.
		Sharks primarily use this sense to locate cryptic prey which can not be detected by their other senses, such as stingrays buried in sand.
	www.flmnh.ufl.edu /fish/sharks/nsrc/Biology.htm (2004 words)

	The Shark Gallery - Cookiecutter Shark (Isistius brasiliensis)
		A rather poorly-known, enigmatic shark of widespread but spotty distribution in warmer oceanic waters, ranging from the surface down to at least 1000m and probably undertaking diurnal vertical migrations over considerable distances; normally encountered far offshore over deep water.
		Cookiecutters are unique sharks, having gained notoriety as facultative ectoparisites upon a wide variety of large marine animals, including cetaceans, northern elephant seals, and other pinnipeds, tunas, billfish and even the equally-mysterious megamouth shark.
		It seems inconceivable that a cookiecutter shark could actively shadow bluefin tuna over any great distance, but arguably raises the further question as to whether these sharks can "hitch" rides upon migratory prey in some remora-like fashion over large distances.
	sharks-med.netfirms.com /med/cookie.htm (555 words)

	Cookiecutter Shark - Sharkworld
		Cookiecutter shark, Cigar shark, Luminous shark, Brazilian shark.
		The cookiecutter has attacked the rubber casings of sonar domes on nuclear submarines, obviously mistaking it for prey.
		The cookiecutter has bioluminescent light organs that allows it to emit a bright green glow from it's belly.
	pages.eidosnet.co.uk /~imageworld/cookie.htm (213 words)

	Florida Museum of Natural History Ichthyology Department: Megamouth Shark (Site not responding. Last check: 2007-11-03)
		The megamouth shark, which reaches over than 500cm in length, is one of the three giant filter-feeding sharks in the sea.
		Cookiecutter sharks are small dogfish sharks that attach to prey with the help of suctorial (aiding in suction) lips, and a modified pharynx.
		This parasitic shark is presumed to be a vertical migrator on a diel cycle, spending the daytime in deep waters and ascending to midwater depths and to the surface at night.
	www.flmnh.ufl.edu /fish/Gallery/Descript/Megamouth/megamouth.htm (2057 words)

	Cant (Site not responding. Last check: 2007-11-03)
		I mean, sharks have survived the last four extinction level events that have happened on this planet.
		The Cookiecutter is one vicious little piece of work, and I do mean little as he's barely over a foot and a half long.
		Our little Cookiecutter Shark earns his daily meal by lighting up his belly in the deep dank waters and waiting for some poor traditional hunter to assume he's a tasty little treat.
	www.republic.org /cant/Columns/jasona/1.14.2003.html (503 words)

	Watercolor illustration for Swimming with Sharks and somethings about sharks
		Angel shark has flat body like a stingray -- you can tell the shark is not a ray because the pectoral fins are not attached to the head.
		Cookiecutter shark eats perfecty round chunks out of living whales and dolphins by clamping its teeth extremely sharp teeth onto them.
		Many sharks begin in the uterus, but the strongest one in each uterus eats all the others before they are born.
	www.yongchen.com /ch_sharks_sharks.htm (780 words)

	Attacked by a Dogfish (Site not responding. Last check: 2007-11-03)
		It seems to me that, once attached, the suctorial lips and hook-like upper teeth of the Cookiecutter Shark would not readily be rotated by the shark or by water movement - any more than a fork stuck in a roast could be spun by a blast of air from a blowdryer.
		In the Great White and most other sharks that regularly gouge flesh from prey too large to be swallowed whole, the hyoid arches are folded back behind the jaws, the left and right one forming an angle of about 45 degrees with the long axis of the shark.
		Instead, I propose that the Cookiecutter vibrates its hyoid arches forward-and-back, causing the jaws to slice through tuna flesh or whale blubber as efficiently as an electric carving knife.
	www.elasmo-research.org /education/topics/p_cookie_bite.htm (936 words)

	BioFortean Files (Site not responding. Last check: 2007-11-03)
		Ciguatera (poisoning caused by the accumulation of ciguatoxins in the fish's flesh) is known in sharks in the family Carcharhinidae.
		One shark, Carcharhinus leucas, was responsible for hospitalizing 188 people in Madagascar (with a 30% mortality rate) due to two new toxins found in its flesh and liver.
		Cookiecutter sharks (Isistius braziliensis) are primarily invertebrate feeders, but are known to attack larger fish and whales, leaving behind holes as they gouge out chunks of flesh.
	www.strangeark.com /strange/fish.html (342 words)

	Independent Study Fair Report
		Sharks often eat things that are floating in the water, such as, an old boot, clothing, or even cardboard.
		A shark is usually not full grown until it is ten to fifteen years old.
		Sharks live to be anywhere from twenty five to one hundred years old.
	www.oberlin.k12.oh.us /talent/isp/reports2002/5rachel.htm (1573 words)

	Shark Glossary: L - EnchantedLearning.com
		If the shark or shark term you are looking for is not in the dictionary, please e-mail us.
		The longfin mako shark (Isurus paucus), is very similar to the shortfin mako, but has longer pectoral fins and a blunter snout.
		It is also less-common shark than the shortfin mako.
	www.zoomdinosaurs.com /subjects/sharks/glossary/indexl.shtml (885 words)

	Cold Fire in the Sea - Bioluminescence
		The pattern of photophores is species- and gender-specific, allowning Green Laternsharks to recognize others of their kind and to co-ordinate schooling and mating behaviors in the flness of the deep-sea.
		The cookiecutter gloms onto its prey with highly specialized suctorial lips and drives in its saw-like lower teeth.
		Cookiecutter bites often look like they were made with a razor-edged ice-cream scoop.
	www.elasmo-research.org /education/topics/p_biolumenescence.htm (1736 words)

	Isistius brasiliensis, Cookiecutter Shark at MarineBio.org (Site not responding. Last check: 2007-11-03)
		The Cookiecutter shark, Isistius brasiliensis (Quoy and Gaimard, 1824), is a small, deep-water shark named for the cookie-shaped wounds it leaves on larger fish and marine mammals.
		This shark also feeds on larger pelagic animals such as wahoo, tuna, billfishes, and marine mammals as a facultative ectoparasite, which means that it feeds on the flesh of these other species causing them harm but not death, and that it is not dependent on these other species for survival.
		Unlike other shark species that lose teeth individually, the teeth of the Cookiecutter shark are shed as a single unit.
	www.marinebio.com /species.asp?id=491 (816 words)

	Oceanic - Around Town Hawaii - Leisure - Reviews - Ocean Matters by Jennifer Crites - Learning About Sharks at Summer ...
		And although some sharks produce eggs to feed their embryonic young while the young are growing inside the mother and waiting to be born, there is only one shark in Hawaii that "lays" its eggs.
		The spongehead cat shark (yes, that's its real name) attaches its egg cases to rocks or other solid objects in the ocean then swims away, leaving its offspring to struggle out of their egg cases months later and fend for themselves.
		There is still much to be learned about sharks and their ocean habitats, but one thing I know for sure: The children I met this summer, with their intelligent questions and comments, love to learn, and their creative and imaginative minds are eagerly taking on the challenge of figuring out how the world works.
	www.hawaii.rr.com /leisure/reviews/jennifer_crites/2002-08_lasasfun.htm (945 words)

	Shark of the Week (Site not responding. Last check: 2007-11-03)
		Actually there are two known cookiecutters, one being a very bad character and the other, the so-called "largetooth cookiecutter," even worse.
		While other sharks almost invariably kill their prey, usually getting the whole thing over quickly and in a highly civilized fashion by swallowing all or most of it in one bite, the cookiecutter has an extremely disagreeable habit of grabbing onto larger fish, whales or even other, decent sharks, and pulling out "plugs" of flesh.
		The lower teeth of the largetooth cookiecutter are the biggest, for its size, of any living shark, being about twice as large relative to their body size as those of the relatively civilized Great White.
	sharktown.com /sharkofweek.html (677 words)

	Shark Reports
		The bonnet head shark is found in the East Atlantic and West Pacific oceans, in surf zones, reefs and on sandy bottoms.
		The porbeagle shark is dark gray on top and has a patch of white on a fin.
		Its predators are the cookiecutter shark and the sperm whale.
	www.ecusd7.org /nelson/nelsonstaff/lburns/shrepo5.htm (1149 words)

	Dexter Lavador (Site not responding. Last check: 2007-11-03)
		Bottom-dwelling, relatively harmless sharks with flattened bodies and a blunt snout.
		A harmless requiem shark with a sharp snout.
		The Thresher Shark is a shark whose tail fin has a greatly elongated upper lobe.
	www.geocities.com /dxtrabecc03/colors.html (171 words)

	Florida Museum of Natural History Ichthyology Department (Site not responding. Last check: 2007-11-03)
		A baby shark is referred to as a pup.
		Sharks fit this category, feeding on fish, seals, and large invertebrates and having few predators.
		When moving water, sound, vibration, and pressure changes stimulates these sensory cells, the shark is alerted to potential prey in nearby waters.
	www.flmnh.ufl.edu /fish/Education/questions/Biology.html (2396 words)

	Sharks! (Win95/Win98/Win3.1) - from CDAccess
		For over 400 million years, sharks have prowled the world's oceans, yet we are just beginning to learn about this ancient creature.
		Compare the diverse species - from the 6' cookiecutter shark, to the 45' whale shark.
		From dogfish sharks, which travel in packs of hundreds, to great whites which travel alone.
	www.cdaccess.com /html/quick/sharkspj.htm (191 words)

	Shark Teeth (Site not responding. Last check: 2007-11-03)
		Yet many do not realize that different species of sharks can be identified by their teeth.
		For example, the Cookiecutter shark has a unique mouth as well as teeth.
		The Cookiecutter shark moves around in a circular pattern as it "cuts out" and sucks the plug of flesh from the pray.
	www.sharkcove.org /school/teeth.html (256 words)

	Species Summary
		The cookiecutter shark Isistius brasiliensis is distinctive for the prominent dark collar marking around its throat, large nearly symmetrical caudal fin with a long ventral lobe over 2/3 length of dorsal caudal margin, and moderately large lower teeth in 25-32 rows.
		The cookiecutter shark has specialized suctorial lips and a strongly modified pharynx that allow it to attach to the sides of it prey (Ref. 247).
		This shark is reported to radiate light for as long as three hours after its death.
	filaman.ifm-geomar.de /Summary/SpeciesSummary.php?id=696 (557 words)

	Tiger Shark Teeth - Your online resource for teeth information! (Site not responding. Last check: 2007-11-03)
		Sharks of all species continually shed their teeth and grow new ones...
		Tiger sharks are common in the mid-Pacific region.
		The Tiger Shark (Galeocerdo cuvier) is one of the largest sharks, and is common in the mid-Pacific region.
	teeth.fbkg.com /index.php?k=tiger-shark-teeth (1265 words)

	Cookiecutter Shark Printout - ZoomSharks.com
		The Cookiecutter Shark (Isistius brasiliensis) is a small, slow-swimming shark.
		Anatomy: This brown shark grows to be about 20 inches (50 cm) long and has a blunt snout.
		In an attack, the cookiecutter shark's lips attach to its victim like a suction cup (creating a vacuum).
	www.enchantedlearning.com /subjects/sharks/classroom/sharktemplates/Cookiecutter.shtml (346 words)

	Fish and Cetacean Mutilation by Cookiecutter Shark - Unexplained Mysteries Discussion Forums
		The cookie-shaped divot is probably the result of a bite from a Cookie-cutter Shark Isistius brasiliensis (Quoy and Gaimard, 1824).
		As the shark bit through the rubber dome, the teeth left marks which are clearly visible.
		Bites by Cookie-cutter sharks on nuclear submarines have been reported by Compagno, 1984.
	www.unexplained-mysteries.com /forum/index.php?act=findpost&pid=763176 (552 words)

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