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Topic: Beaked whale

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	Beaked whale - Wikipedia, the free encyclopedia
		The beaked whales are the second-largest family of Cetaceans (after the dolphins) and were one of the first groups to diverge from the ancestral lineage.
		Baird's and Cuvier's Beaked Whales were subject to commercial exploitation off the coast of Japan; and the Northern Bottlenose Whale was extensively hunted in the northern part of the North Atlantic late in the 19th and early in the 20th centuries.
		However there are now clear issues of concern: studies of stranded beaked whales show rising levels of toxic chemicals in their blubber (as a top-order predator they are, like raptors, particularly vulnerable to build-up of biocontaminants) and they frequently have ingested plastic bags (which do not break down and can be lethal).
	en.wikipedia.org /wiki/Beaked_whale (690 words)

	Cuvier's Beaked Whale - Wikipedia, the free encyclopedia
		Cuvier's Beaked Whale has a short beak in comparison with other species in the family, making for a slightly bulbous-shaped melon.
		The Cuvier's Beaked Whale is difficult to distinguish from many of the mesoplodont whales at sea.
		The distribution of Cuvier's Beaked Whale is known mainly from strandings.
	en.wikipedia.org /wiki/Cuvier's_Beaked_Whale (438 words)

	WhaleResearch.org :: Centre for Cetacean Research & Conservation :: Humpback & Beaked Whale Research :: ...
		From the types of fish and squid recovered from beaked whale stomachs, it is speculated that beaked whales may be the deepest and longest diving of all cetaceans.
		In the first long-term study of beaked whales (launched in 1998), Hal Whitehead, Sascha Hooker and their students at Dalhousie University have found that a population of northern bottlenose whales relies on an underwater canyon off Nova Scotia called the Gully.
		Beaked whales, because of their peculiar physiology and deep diving, are especially susceptible to damage resulting from acoustic pollution.
	www.whaleresearch.org /main_beaked.htm (1080 words)

	CMS: Berardius arnuxii, Arnoux´s beaked whale
		Arnoux's beaked whales are usually very shy creatures; like their northern congeners, they are capable of diving for an hour or more, hence are difficult to observe and positively identify (in the southern hemisphere, identification could be confused with H.
		The feeding habits of Arnoux's beaked whales are assumed to be similar to those of their Northern Hemisphere relatives, Baird's beaked whales, thus consisting of benthic and pelagic fishes and cephalopods (Jefferson et al.
		Arnoux's beaked whales are known to enter pack-ice and may live very close to the ice edge in summer, but are likely to move away in winter (Carwardine, 1995).
	www.cms.int /reports/small_cetaceans/data/b_arnuxii/b_arnuxii.htm (966 words)

	PBS - The Voyage of the Odyssey - Track the Voyage - AUSTRALIA
		As a group, beaked whales are the least known of all marine mammals and there are still several species for which there are no confirmed sightings at sea, only corpses and skeletons.
		Beaked whales are big animals, and upon seeing one stranded, most bystanders have no idea what it is. They often ask whether it's a giant dolphin.
		In the other 20 odd beaked whale species the females rarely have any teeth, and the males are distinguished by either 2 or 4 teeth in one of several peculiar arrangements.
	www.pbs.org /odyssey/odyssey/20020424_log_transcript.html (902 words)

	Whale Glossary: B
		The beak is the elongated part of the mouth and jaws (the snout) on beaked whales and some dolphins.
		The beaked whales are a type of toothed whale that have an elongated snout (mouth and jaws) and generally live in deep waters (they are often sited near ocean trenches).
		Gray whales and belugas are benthic feeders, sieving organisms from oceanic mud.
	www.enchantedlearning.com /subjects/whales/glossary/indexb.shtml (1325 words)

	beaked
		Beaked whales, family Ziphiidea, are among the most primitive of whales and the least known of all cetaceans (Encyclopedia of Mammals 1984).
		Beaked whales are found in all the world oceans, yet are rarely every seen (Nowak and Paradiso, 1983).
		Beaked whales also have small dorsal fins which are set back far on the body, 55-65% of the distance from the rostrum to the tail.
	kingfish.coastal.edu /marine/375/beaked.html (845 words)

	Aquarium of the Pacific (Site not responding. Last check: 2007-11-05)
		Baird’s beaked whales are social animals that live in close-knit formations of 3-30 animals, (occasionally 50) that often dive, surface, and blow in unison.
		The spade-toothed whale, known only from a partial skull and a tooth and jaw, got its name from the shape of its single tooth which is said to resemble the oblong flensing knife called a spade that whalers used to remove whale blubber from the carcass.
		In 2002 the 21st beaked whale species was identified through DNA analysis of teeth and tissues from five whales stranded on the coast of southern California in the 1970s.
	www.aquariumofpacific.org /ANIMAL_DATABASE/ADBprint.asp?id=127 (1597 words)

	March Whale Strandings in the Bahama Islands (Site not responding. Last check: 2007-11-05)
		This was challenging because the whale was bleeding from several superficial ventral and tail scratches and several 6-8' sharks were attempting to get close to the whale as we were knee to waist deep in the water.
		After seeing whale #2 safely in deep water, we returned to this whale, and the last few minutes of this rescue were videotaped as the whale swam off into very deep water, and the whale was photographed for later identification.
		Beaked whales (Suborder Odontoceti, Family Ziphiidae), in particular may be sensitive to acoustic activities and may be frightened/disoriented by sound sources and levels that are not otherwise permanently damaging to them.
	www.orcahome.de /strandings.htm (2447 words)

	Mty Bay beaked whales
		Their giant head is filled with spermaceti, a reservoir of high-quality oil-like wax for which the whales were relentlessly hunted for "whale oil." There is only a rude ill-formed lump for a dorsal fin and the skin is textured with wrinkles and ridges.
		Compared to the 35-40 foot Baird's Beaked Whale and the 18-25 foot Cuvier's Beaked Whale, the various species of 8-15 foot beaked whales in the genus Mesoplodon are both mysterious and difficult to identify in the field.
		Observations of an unidentified beaked whale (Mesoplodon sp.) in the eastern tropical Pacific.
	www.montereybay.com /creagrus/MtyBaybeaked.html (1515 words)

	ACS Cuvier's beaked whale Cetacean Fact Sheet - American Cetacean Society
		Cuvier's beaked whale, also known as the goosebeak whale, is one of twenty named species of beaked whales.
		As the Cuvier's beaked whale ages, first the head and neck and then the body become more lightly colored; the heads of old males are almost completely white.
		A few Cuvier's beaked whales were taken by hunters in the 1940s to 1960s in Japan's coastal whaling operations, but the numbers were so few that there was no threat to the survival of the species.
	www.acsonline.org /factpack/CuviersWhale.htm (819 words)

	PBS - The Voyage of the Odyssey - Track the Voyage - MALDIVES
		The Longman's beaked whale stranded on January 17, 2000 near Keyodhoo Atoll in the north of the Maldive archipelago.
		Dalebout conducted the analysis on the specimens and confirmed that the whale was indeed of the genus Mesoplodon, it was a Longman's beaked whale (Indopacetus pacificus).
		Males of most beaked whales have 2 or 4 teeth in the lower jaw and none in the upper jaw, the majority of females are without teeth.
	www.pbs.org /odyssey/odyssey/20030228_log_transcript.html (991 words)

	Toothed Whales (Site not responding. Last check: 2007-11-05)
		There are several families of Odontoceti, or toothed whales, including sperm whales, pygmy sperm whales, beaked whales, river-dolphins (3 families) belugas and narwhals, dolphins and porpoises.
		A similar toothed whale family is the Kogiidae family which includes the pygmy sperm whale and dwarf sperm whale which are significantly smaller than the sperm whale but share characteristics such as the spermaceti organ, the blunt head, and the distinctive narrow lower jaw.
		Beaked whales may be rare or simply elusive but, generally, they live in deep water far from land and are rarely seen.
	nmml.afsc.noaa.gov /education/cetaceans/toothed1.htm (560 words)

	Mesoplodon bidens (Site not responding. Last check: 2007-11-05)
		Observations of Sowerby's Beaked Whales (Mesoplodon bidens) in the Gully, Nova Scotia.
		Sowerby’s Beaked Whales seen in the Gully, 8 July 1997: (a) typical surfacing appearance; (b) female and calf; (c) adult male, note the erupted white tip of the tooth; (d) adult male with M-shaped dorsal fin.
		Deep-diving behaviour of the northern bottlenose whale, Hyperoodon ampullatus (Cetacea: Ziphiidae).
	whitelab.biology.dal.ca /sh/bidens.htm (347 words)

	CMS: Mesoplodon peruvianus, Peruvian beaked whale
		Peruvian beaked whales are dark grey in colour, which fades to light grey on the undersides.
		The Peruvian beaked whale was newly-discovered as recently as 1991 and is only known from Bahiá de Ia Paz in the southwestern Golfo de California, and from the coast of Peru between Playa Paraiso (11°12'S) and San Juan de Marcona (15°19'S) (Rice, 1998).
		Peruvian beaked whales observed in 5 possible sightings in 1986 and 1988 were readily approachable (Carwardine, 1995).
	www.cms.int /reports/small_cetaceans/data/m_peruvianus/m_peruvianus.htm (384 words)

	Blainville's Beaked Whale (Site not responding. Last check: 2007-11-05)
		Blainville’s beaked whale belongs to the genus Mesoplodon, a very enigmatic group of beaked whales that are rarely sighted by humans.
		Mesoplodon densirostris, Blainville’s beaked whale, can be distinguished by a high arch in the lower jaw near the corner of the mouth from which a massive tooth erupts.
		These whales have been sighted in the Gulf of Mexico, and are reported to be widely distributed in tropical and temperate waters.
	www.tmmsn.org /mmgulf/mesoplodon_densirostris.html (324 words)

	Factsheets - Longman's Beaked Whale
		Longman's Beaked Whales have been seen at sea in tight groups of 5-20 animals, and sometimes up to 100 animals; pods appear to be close-knit and cohesive.
		Longman's Beaked Whale is restricted to offshore waters of the tropical Pacific and Indian Oceans.
		Nothing is known about the diet of Longman's Beaked Whales, although, based on the examination of the stomach contents of other species, they probably feed on deep-sea fish, squid and possibly crustaceans and echinoderms (sea urchins and starfish) found on the sea floor.
	www.amonline.net.au /factsheets/longmans_beaked.htm (923 words)

	Factsheets - Arnoux's Beaked Whale
		Arnoux's Beaked Whales are slate grey to brown dorsally and lighter ventrally.
		Arnoux's and Baird's Beaked Whales, the only two species in the genus Berardius, are very similar in appearance; the differences given in the original description of Baird's Beaked Whale, and thought to distinguish this whale from Arnoux's Beaked Whale, have been disputed.
		Baird's beaked whale Berardius bairdii Stejneger, 1883: Arnoux's beaked whale Berardius arnuxii Duvernoy, 1851.
	www.amonline.net.au /factsheets/arnouxs_beaked.htm (1263 words)

	WhaleTimes Fishin' for Facts~Beaked Whales
		Baird's beaked whale, like other beaked whales, they are deep divers and have been known to dive up to 2,400 meters.
		Their rostrum (beak) is also white while the rest of the body is dark gray to fl.
		In older whales the teeth curve over the jaw making it impossible for the whales to open their mouth very far.
	www.whaletimes.org /beaked.htm (394 words)

	California Diving News: CA Marine Life - Whales
		Another good indicator that beaked whales are not dining with their teeth is the propensity for barnacles to grow on the teeth of some species.
		Male beaked whales evidently use those teeth as "jousting weapons." Additionally, some of these assorted marks appear to be battlescars left from shark and killer whale attack.
		Most beaked whales are found (if found at all, that is), either singly or in small pods of up containing up to 40 individuals.
	www.saintbrendan.com /cdnaug/velde8.html (1075 words)

	Gervais' Beaked Whale (Mesoplodon europaeus)
		A rather small whale with a prominent beak and only one large tooth in each lower jaw, placed about 15 cm back from the tip and beside the posterior end of the symphysis of the lower jaws.
		Gervais’ beaked whales are known primarily from the western North Atlantic.
		They are the most commonly stranded beaked whale in the Gulf of Mexico with several strandings on Texas beaches known.
	www.nsrl.ttu.edu /tmot1/mesoeuro.htm (295 words)

	NRDC: Protecting Whales from Dangerous Sonar
		Of the 13 beaked whales that stranded in the Bahamas in March 2000 after exposure to active sonar, seven died, including this one.
		Since the incident, the area's population of Cuvier's beaked whales has all but disappeared, leading researchers to conclude that they either abandoned their habitat or died at sea.
		Naval sonar has been shown to alter the singing of humpback whales, an activity essential to the reproduction of this endangered species; to disrupt the feeding of orcas; and to cause porpoises and other species to leap from the water, or panic and flee.
	www.nrdc.org /wildlife/marine/sonar.asp (1722 words)

	On an unidentified beaked whale found stranded in Kagoshima
		A 6.5 m beaked whale was found stranded in Kagoshima-ken (prefecture) on the 26 th of July, 2002.
		The skull and mandibles of the Kagoshima specimen are extremely similar to those of the type specimen of Longman's beaked whale, based on the photographs and descriptions in Longman's original description (1926) and Azzaroli (1968).
		Unidentified beaked whales possibly Longman's beaked whale were sighted by various researchers in various regions of the Indopacific (Pitman, et al., 1999; Pitman, 2002).
	svrsh1.kahaku.go.jp /sendai/indexE.html (1158 words)

	Ocean Watch (Site not responding. Last check: 2007-11-05)
		Beaked whales tend to shun boats, swim alone or in small groups and have no distinct "blow" to help identify them at sea.
		Part of one type of a beaked whale's calcified upper jaw is the hardest material known in the animal kingdom, surpassing even elephant and walrus ivory.
		Beaked whales aren't commonly seen, but it doesn't mean they aren't in Hawaiian waters.
	starbulletin.com /96/03/18/news/oceanwatch.html (632 words)

	San Diego Zoo's Animal Bytes: Whale
		Whales use their tails in an up-and-down motion to swim, whereas fish use a back-and-forth motion with their tails.
		Whales come in different sizes, but they all have smooth skin, flippers, and flat tails (called flukes) that propel them through the water.
		One great success story is the gray whale, which was hunted to the brink of extinction twice, and now has completely recovered due to protection and conservation efforts.
	www.sandiegozoo.org /animalbytes/t-whale.html (813 words)

	BBC NEWS \| Scotland \| Rare whale corpse found on shore (Site not responding. Last check: 2007-11-05)
		The Cuvier's beaked whale was spotted by a farmer on a beach on his land, west of Torloisk, on Monday.
		HWDT officials have examined the whale, which is thought to be male, and taken samples of skin, blubber and muscle for analysis.
		The HDWT said the whale had deteriorated to such an extent that it would be impossible to determine the cause of death.
	news.bbc.co.uk /1/hi/scotland/3445917.stm (319 words)

	Scientists examine rare beaked whale - Science - www.theage.com.au
		Mr Orel said generally beaked whales were found in deeper waters offshore, explaining why they were very poorly described by the scientific community.
		Longman's beaked whales were so rare little was known about their feeding patterns, their behaviour or their lifespan.
		Unlike other types of whales, beaked whales were unlikely to travel in pods, more often reported as being seen alone or in pairs.
	www.theage.com.au /news/Science/Scientists-examine-rare-beaked-whale/2004/11/03/1099362199058.html (351 words)

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