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Topic: Bottlenose Dolphin

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Cetacea

	Bottlenose Dolphin - MSN Encarta
		Bottlenose dolphins are coastal in most areas and remain in groups of usually fewer than 20, although offshore varieties also exist in many places and, in deep water, groups can be as large as 200.
		Bottlenose dolphins are named for their snout, which is distinctly set off from the head, like the neck of a bottle.
		Bottlenose dolphins have been hunted for meat, fertilizer, and oil, but their numbers do not appear to have been significantly reduced except in the Black Sea, where pollution and overfishing of the dolphin's prey have caused as much damage to them as direct killing.
	encarta.msn.com /encyclopedia_761579876/Bottlenose_Dolphin.html (553 words)

	Chesapeake Bay Program - Critter of the Month
		This dolphin's neck is very flexible: whereas in many ocean dolphins the vertebrae in their necks are fused, in the bottlenose five out of seven of the vertebrae are left unfused, which allows it to bend its neck to a right angle with the rest of its body.
		The dolphin's acute vision appears to be due to adaptions of the lens and cornea that compensate for the refraction of light that occurs during the transition from aquatic to aerial vision.
		Although the bottlenose dolphin is not endangered (its population in the western North Atlantic is estimated to be 11,700, of which more than 9,000 swim mostly offshore), they apparently are acutely affected by changes in their habitat and by pollution.
	www.chesapeakebay.net /info/bottlenose_dolphin.cfm (2053 words)

	The Bottlenose Dolphin
		In the oceanarium in Hawaii, in 1971, a calf was born to a bottlenose dolphin and a rough-toothed dolphin.
		When other species of dolphin, such as the common dolphin are placed blindfolded in tanks, they frequently bang into walls and show frustration, indicating that they depend much more on their vision than do the less pelagic bottlenose dolphins.
		The inshore habitat of the bottlenose dolphin is threatened by the encroachment of civilization and pollution.
	library.thinkquest.org /17963/genus-Tursiops.html (6762 words)

	Bottlenose dolphin \| Greenpeace USA
		Bottlenose dolphins are gray with a soft color pattern, have a robust body with a short to medium-length beak, and a large curved dorsal fin.
		Bottlenose dolphins like to surf in breakers and waves from whales or storms, and are well-known for riding the bow waves of powered vessels.
		Bottlenose dolphins often associate with other cetacean species such as pilot whales; however, they may become aggressive if other species try to occupy their bow-riding territory.
	www.greenpeace.org /usa/campaigns/oceans/follow-the-journey/wildlife-facts/bottlenose-dolphin (390 words)

	Bottlenose Dolphin \| Cetacean Fact Sheet \| American Cetacean Society
		The color of the bottlenose dolphin varies considerably, but generally this dolphin is light gray to slate gray on the upper part of the body shading to lighter sides and pale, pinkish gray on the belly.
		Bottlenose dolphins are accidentally caught in a variety of fishing gear, including gillnets, purse seiners used to catch tuna, and shrimp trawls.
		Bottlenose dolphins are vulnerable to pollution, habitat alteration, boat collisions, human feeding of and swimming with wild animals, and human disturbance (such as boating).
	www.acsonline.org /factpack/btlnose.htm (875 words)

	Bottlenose Dolphin - Tursiops truncatus
		Bottlenose dolphins are one of the most familiar of all the dolphin species.
		Bottlenose dolphins are found in the coastal Atlantic from Maine to Florida.
		Bottlenose dolphins are extremely intelligent and have been used by the military in test maneuvers and have been reported to search for mines in the Persian Gulf.
	www.angelfire.com /mo2/animals1/cetacean/bottlenosedolph.html (684 words)

	Bottlenose Dolphin (Tursiops truncatus)
		Bottlenose dolphins may be seen in groups numbering up to several hundred but smaller social units of two to 15 are more common.
		Bottlenose dolphins are the most widespread and common cetacean of the coastal Gulf of Mexico and are commonly seen in bays, estuaries, and ship channels.
		Bottlenoses may be able to adapt to man’s activities but probably are readily affected by pollution and would make a good "indicator species" signalling the overuse and excessive pollution of Gulf waters.
	www.nsrl.ttu.edu /tmot1/turstrun.htm (774 words)

	Bottlenose Dolphins
		The fastest a dolphin has swum was 7.3 meters per second (this dolphin was being chased by a speedboat), while the record for depth is over 1,640 feet (500 meters), and the record for the highest jump is 20 feet (6 meters).
		Bottlenose dolphins cooperate in hunting and have been reported to herd fish into groups, and then taking turns to feed in the schools while others keep guard, or trapping schools of fish against sand banks for an easy dinner.
		Bottlenose dolphins don’t get water from the oceans because they would drink more water to get rid of the salt in the salty ocean water than they would have drunk in the first place.
	www.math.utah.edu /~yplee/clement/Bottlenose_Dolphins.html (1019 words)

	ANIMAL BYTES - Bottlenose Dolphin
		Bottlenose dolphins are light to dark gray over their dorsal surface, fading into a white or cream along their ventral region.
		Atlantic bottlenose dolphins as a whole are typically smaller than Pacific bottlenose dolphins; however, bottlenose dolphins frequenting cooler, temperate waters in either ocean tend to exhibit sizes indicative of the relatively larger offshore ecotype.
		Bottlenose dolphin populations were drastically reduced around the turn of the last century due to commercial fishing operations.
	www.seaworld.org /animal-info/animal-bytes/animalia/eumetazoa/coelomates/deuterostomes/chordata/craniata/mammalia/cetacea/bottlenose-dolphin.htm (1059 words)

	Dolphin Care UK -
		Bottlenose dolphins are very active dolphins and are often seen bow-riding, surfing, lobtailing and breaching.
		Bottlenoses, like many other whales and dolphins, are social animals and, although they can be found on their own, they tend to live in family groups called 'schools'.
		Bottlenoses can be seen "fish-wacking"; stunning fish by flicking them into the air with their tail flukes and then picking them up from the surface of the water.
	www.dolphincareuk.org /bottlenose.html (563 words)

	BOTTLENOSE DOLPHINS - Senses
		Bottlenose dolphins respond to tones within the frequency range of 1 to 150 kHz.
		Unlike humans, a dolphin's inner ear is encased in a separate bone, called the auditory bulla, which is connected to the skull with fibrous tissue.
		A bottlenose dolphin's skin appears to be sensitive to a broad range of tactile sensations (Herman, 1980).
	www.seaworld.org /animal-info/info-books/bottlenose/senses.htm (745 words)

	Byron Bay's Bottlenose dolphins
		The dorsal cape of the bottlenose dolphin is usually a dark bluish grey with a prominent curved-back dorsal fin.
		Bottlenose dolphins may appear to be always smiling, however it is not a sign of happiness as their face is fixed in that expression even when in distress or pain.
		Bottlenose dolphins have been known to clap their jaws together in conflict situations, and splashes and slaps made with the body may also be used as a form of communication.
	www.byronbayguide.com.au /flex/byron_bays_bottlenose_dolphins/91/1 (4989 words)

	Fact Sheets > Bottlenose Dolphin
		Bottlenose dolphins are the most studied cetacean in the wild because they live near coasts, and in captivity because they adapt well to oceanariums.
		Bottlenose dolphins often ride the bow waves of moving vessels, have been reported riding pressure waves of big whales, and body surfing in nearshore waves.
		Bottlenose dolphins are one of the best known cetaceans, as they are displayed at oceanariums and are frequently seen on television and in movies.
	www.fact-sheets.com /science-nature/animals/bottlenose_dolphin (695 words)

	The Dolphin Institute - Resource Guide
		Bottlenose dolphins further belong to the family Delphinidae, the oceanic dolphins; they are the only species in their genus.
		Bottlenose dolphins are estimated to live into their forties and fifties; researchers in Sarasota Bay, Florida, found that females can live for over fifty years and males for over forty years.
		Bottlenose dolphins feed on a wide variety of fish and cephalopods (such as squid), and occasionally shrimp and small rays and sharks.
	www.dolphin-institute.org /resource_guide/nathistandecol.htm (1219 words)

	Species Corner: Bottlenose Dolphins (Tursiops truncatus) (Site not responding. Last check: )
		Bottlenose dolphins are typically 8-9 feet in length, weighing about 30 pounds at birth and reaching 400-500 pounds at maturity with males being slightly larger than females.
		Dolphins may be aged by the presence of growth layers in their teeth, much like the aging of a tree from its rings.
		Bottlenose dolphins are quite adaptable and have learned to capitalize on human disturbance of the environment for new food sources such as feeding behind shrimp boats or expanding their natural range to feed in newly created ship channels.
	www.tmmsn.org /mmgulf/tursiops.html (714 words)

	Cetacean Species - Bottlenose dolphin
		The bottlenose dolphin is a robust, chunky dolphin with a well-defined (usually short and stubby) beak, sharply demarcated from the forehead by a distinct crease.
		The behaviour of captive and free-ranging bottlenose dolphins has been noted to be significantly influenced by a diurnal rhythm; the frequency of social interactions reaching maximum levels in the morning and declining in the late afternoon.
		Bottlenose dolphins often associate with other cetacean species and are commonly known to associate with pilot whales, humpback dolphins, spotted dolphins and spinner dolphins.
	www.crru.org.uk /education/factfiles/bnose.htm (1149 words)

	Dolphin Research Institute - Bottlenose Dolphins
		The dorsal cape of the bottlenose dolphin is usually a dark bluish grey with a prominent curved-back dorsal fin.
		Bottlenose dolphins may appear to be always smiling, however it is not a sign of happiness as their face is fixed in that expression even when in distress or pain.
		Bottlenose dolphins have been known to clap their jaws together in conflict situations, and splashes and slaps made with the body may also be used as a form of communication.
	www.dolphinresearch.org.au /bottlenose.php (4605 words)

	DRC - Atantic Bottlenose Dolphin Physiology (Site not responding. Last check: )
		Dolphins put a large amount of energy into raising their young, which stay with them an average of three to six years.
		During the winter, when a dolphin needs to keep warm, arteries leading from the core of the body to the cooler flippers, flukes and dorsal fin, are surrounded by veins leading from these same areas.
		A dolphin is born with 88 to 100 teeth.
	www.dolphins.org /Learn/lmm-phys.htm (3653 words)

	Bottlenose Dolphin
		Dolphins are small whales with teeth and are not fish.
		Dolphins live in small groups of up to 12 animals; these groups are called pods.
		Dolphins have a blowhole, lungs and are covered with a rubbery skin.
	www.geocities.com /wjb79/Sea_Animal_Reports/bottlenose_dolphin.htm (148 words)

	NPCA \| Dolphin
		In the eastern tropical Pacific the population is estimated to be 243,500, while in the waters of Japan the population estimates are as low as 37,000.
		Dolphins are social animals well known for their playful and carefree nature.
		Bottlenose dolphins typically weigh 440 to 600 pounds and reach an average size of 10 feet (some reach as much as 14 feet).
	www.npca.org /marine_and_coastal/marine_wildlife/dolphin.html (317 words)

	Factsheets: Bottlenose Dolphin
		The Bottlenose Dolphin, Tursiops truncatus is a highly variable species with at least two recognisable forms, inshore and off shore.
		The Bottlenose Dolphin occurs in all oceans and seas.
		Bottlenose Dolphins are a very social species and feed together, although they are known to feed alone.
	www.amonline.net.au /factsheets/bottlenose_dolphin.htm (459 words)

	Bottlenose dolphin
		The ASR for bottlenose dolphins in oceanaria was calculated to be 0.951 for the period 1988-1992.
		Bottlenose dolphins in the Pacific are often seen in mixed-species groups, most commonly with pilot whales (Globicephala macrorhynchus), pantropical spotted dolphins (Stenella attenuata) and spinner dolphins (Stenella longirostris) (Scott and Chivers, 1990).
		Verwey, J. and Wolff, W.J. The bottlenose dolphin (Tursiops truncatus) in: P.J.H. Reijnders and W.J. Wolff (eds.): Marine Mammals of the Wadden Sea.
	ourworld.compuserve.com /homepages/jaap/tursiops.htm (2442 words)

	Save Bottlenose Dolphins - Volunteer Vacation
		The widespread distribution of bottlenose and other dolphin species, combined with the energy of dedicated researchers and volunteers around the world who are concerned about their survival, means there are many opportunities to make a difference for dolphins and their ecosystems.
		The bottlenose dolphins of Greece are the main focus of this nine-day opportunity, which involves monitoring the dolphins and gathering data on their ecosystem.
		Experts say dolphins have a level of intelligence comparable with humans, and all species appear to be especially skillful at cooperating with each other when looking for food or caring for their young.
	www.charityguide.org /volunteer/vacation/bottlenose-dolphins.htm (650 words)

	Save Bottlenose Dolphins - Volunteer Vacation
		The widespread distribution of bottlenose and other dolphin species, combined with the energy of dedicated researchers and volunteers around the world who are concerned about their survival, means there are many opportunities to make a difference for dolphins and their ecosystems.
		The bottlenose dolphins of Greece are the main focus of this nine-day opportunity, which involves monitoring the dolphins and gathering data on their ecosystem.
		Experts say dolphins have a level of intelligence comparable with humans, and all species appear to be especially skillful at cooperating with each other when looking for food or caring for their young.
	charityguide.org /volunteer/vacation/bottlenose-dolphins.htm (650 words)

	Dolphins: Bottlenose Dolphin Species Profile (Tursiops truncatus)
		These different dolphin species display a wide variety of body shapes, sizes and color patterns, however, the "classic" gray bottlenose dolphin (Tursiops truncatus) is certainly the one most widely recognized.
		In fact they are the largest members of the Delphinidae family of marine dolphins; the very same family as bottlenose dolphins.
		Bottlenose dolphins are found in temperate and tropical waters around the world.
	www.dolphintrainer.com /dolphins_profile.htm (1119 words)

	Bottlenose dolphin
		Bottlenose dolphins are found world-wide in tropical and temperate waters, inshore and offshore.
		One example of this “friendly dolphin” phenomenon is a pair of bottlenose dolphins which live in the coastal waters around the Isles of Coll and Tiree.
		Worldwide, bottlenose dolphins are captured for display in oceanaria, a practice which is illegal in the United Kingdom.
	www.whaledolphintrust.co.uk /whales_dolphins/bottlenose-dolphin.asp (496 words)

	BOTTLENOSE DOLPHIN - ZoomWhales.com
		The Atlantic bottlenose dolphins are small cetaceans that have a long, beaklike snout, a falcate (sickle-shaped) dorsal fin, and sharp teeth.
		Bottlenose dolphins live in different areas during the different parts of their life cycle, for example, breeding and giving birth.
		Dolphin breeding occurs mostly in the winter to early spring while near the surface and in warm waters.
	www.enchantedlearning.com /subjects/whales/species/Bottledolphin.shtml (635 words)

	[No title]
		The bottlenose dolphin is a large, robust dolphin with a tall dorsal fin.
		Bottlenose dolphins are taken incidentally in gillnets, purse seines and shrimp trawls in various commercial and recreational fisheries.
		Bottlenose dolphins can be wounded or killed in collisions with boats and feeding wild dolphins is thought to negatively affect the behavior of individuals and local populations.
	www.ifaw.org /ifaw/general/default.aspx?oid=93815 (535 words)

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