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Discover the wonders the Great Barrier Reef with a Seawalker helmet diving program. You need no prior diving experience to take part in this exciting underwater adventure! Included is a full day of snorkelling and a cruise. Come and see for yourself the beauty of the waters off the coast of Cairns.
22 Nov 2008
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Two species of tropical octopus have evolved a neat trick to avoid predators - they lift up six of their arms and walk backward on the other two. The Indonesian coconut octopus, Octopus marginatus, scoots along the ocean floor using the tips of its arms. (Video by Bob Cranston/Sea Studios, Inc.; Rights protected clip. Not to be copied.) More video: The octopus Octopus aculeatus maintains its algae-like camouflage while walking backwards on two arms, using the outer part of each arm like a conveyor belt. (Video by Crissy Huffard/UC Berkeley) 1.2Mb QuickTime file This first report of bipedal behavior in octopuses, written by University of California, Berkeley, researchers, will be published in the March 25 issue of Science. When walking, these octopuses use the outer halves of their two back arms like tank treads, alternately laying down a sucker edge and rolling it along the ground. In Indonesia, for example, the coconut octopus looks like a coconut tiptoeing along the ocean bottom, six of its arms wrapped tightly around its body. UC Berkeley graduate student Crissy Huffard clocked the two-legged speed of one coconut octopus at two and a half inches per second, while a second individual zoomed along, backwards, at five and a half inches per second. This is faster than they can crawl, but probably slower than they jet around. The other type of octopus, which camouflages itself as algae in tropical waters from Indonesia to Australia, looks like a sea monster scooting along the sea floor on two legs. Huffard filmed this creature off Australia's Great Barrier Reef easily rolling over rocks and other obstacles. "This behavior is very exciting," said Huffard, who first noted it five years ago in the coconut octopus but only recently was able to capture both types of octopuses on film. "This is the first underwater bipedal locomotion I know of, and the first example of hydrostatic bipedal movement." Huffard and coauthor Robert Full, professor of integrative biology at UC Berkeley, think that this bipedal walking is a strategy octopuses use to backpedal away from predators while remaining camouflaged. Octopuses camouflage themselves by changing both color and shape, but when startled and forced to move quickly, they have to give up their camouflage. Not so when walking. "This bipedal behavior allows them to get away and remain cryptic," said Huffard. An octopus is basically a water-filled balloon, but with the fluid contained in muscle cells rather than an open cavity. It keeps its shape not with an internal or external skeleton but by hydrostatic pressure, sometimes called a hydrostatic skeleton or muscular hydrostat. Normally, it crawls over the bottom of the ocean, pushing and pulling with the suckers on its eight arms, or jets backwards through the water. All these movements are accomplished through muscles that squeeze and bend the fluid-filled arms and body. Full said he was "blown away" when Huffard showed him video of the octopuses last year. He urged her to obtain more video that could be used to more clearly see how they walk, and encouraged her to publish the observations. Full, who looks at many types of animal locomotion and seeks to determine how animals control such movements, sees a revolutionary new principle in how the octopus uses its arms - one that could be used in making soft, squishy robots. "Understanding behavior like this could usher in a new frontier of 'soft' robotics," in contrast to the rigid robots common today, he said. "New artificial muscles that can stiffen at will could reproduce this walking behavior," said Full. "The wonderful thing about soft robotics is that it's infinitely adaptable, unlike the few degrees of freedom of rigid robots." Huffard first noticed the coconut octopus, Octopus marginatus, dancing along the sand in 2000, while helping a film crew obtain octopus footage off the island of Sulawesi in Indonesia. The octopus, with a head about two inches long, lives on the sandy bottom in water some 20 to 30 meters (60 to 100 feet) deep, among lots of sunken coconuts, and even hides out in the shells of coconuts, drawing two halves around it to hide. Its weird walking behavior, no doubt noticed by numerous other divers, has apparently never been analyzed in the scientific literature, she said. "We know so little about these animals," Huffard said, noting that only 200 of perhaps 300 species of octopus from around the world have been described. She herself is writing up descriptions of five new octopuses, one from Hawaii and four from Tonga. She filed away her observations about O. marginatus, however, to concentrate on her thesis, which involves the behavior of another Indonesian octopus, Octopus (Abdopus) aculeatus. This creature with a head the size of a walnut inhabits the intertidal zone, foraging along sandy bottoms among grasses and hiding out in tidepools or burying itself in the sand at low tide. To camouflage itself, it sometimes coils its two front arms and raises them in a pose that somewhat resembles algae. Two years ago, while Huffard was visiting her thesis advisor, UC Berkeley integrative biology professor Roy Caldwell, on Lizard Island 45 miles north of Cairns, Australia, she decided to take a look at local members of that same species. She snorkeled out to capture one and, after putting it in a tank at the research station, was surprised to see it also walking on two arms. "It seemed like it was walking on little conveyor belts," she said. She suspects that the reason she never saw this behavior in O. aculeatus in Indonesia, despite some thousand hours of snorkeling over five years, is that in Indonesia, the currents are often too strong for such behavior. Both Huffard and Full are interested in how these octopuses control their unusual form of bipedal locomotion. Recent articles shed light on this. Israeli scientists have reported that octopus arms execute incredibly complex curling and bending motions even when cut off. Apparently a nerve ganglion in each arm can send clock-like signals down the arm to produce rhythmic movements, such as bends propagating down the arm, irrespective of whether there is a head and brain to control them. Similar movements seem to be involved in two-legged walking. "These are stereotyped movements that don't need feedback from the brain," Huffard said. "A lot of behavior is built into the ganglia of each octopus arm, so that seemingly complex behavior is really simple," Full added. Similar controls could make a soft robotic arm a lot easier to control than it would seem, and make it feasible to build an octopus robot that walks. An article in the Feb. 11, 2005, issue of Nature revealed just such a mechanism. Huffard's research was supported by an American Malacological Society Student Research Grant. Full is supported by the National Science Foundation. A third co-author on the paper is Farnis Boneka of the Department of Fisheries and Marine Science, Universitas Sam Ratulangi, Manado, North Sulawesi, Indonesia.
8 Nov 2008
18950
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Guitar by Chris Cairns for DixonBaxi
15 Nov 2008
163307
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3:32
Authentic Holiday Films offers affordable video production for tourism and travel companies in Australia and internationally through a network of international travel videographers. Have a look at videos from Melbourne, Cairns, Lightning Ridge and Fraser Island for an overview of our work. *******www.authenticholidayfilms****
14 Feb 2010
506
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4:04
Bruce Pass - This pass would be great for you if you want to start in Sydney and experience some of the best the East Coast of Australia has to offer before finishing in Cairns. With some excellent included activities like a Surf Lesson and Outback Cattle Station and the freedom to hop on and off whenever you want. *******www.realgap******/Oz-Experience-Bruce-Pass This pass would is perfect for you if want to start in Cairns and travel down the to Sydney at your own pace, while also experiencing some of the best the East Coast of Australia has to offer. *******www.realgap******/OZ-Experience-Cobber-pass
28 Feb 2009
411
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1:11
*******www.petmour**** Somos un grupo conformado por médicos veterinarios con practica en las pequeñas especies animales, perros y gatos. Prestamos servicios de estética canina y felina, servicio medico veterinario y venta de accesorios nacionales e importados para tu mascota de la mejor calidad. En nuestro casa matriz podrás encontrar una gran cantidad de productos como: - cajas de arena para gatos - camas para perros - comida para gatos - ropa para perros - ropa para gatos - productos de limpieza - mesas para grooming - vitaminas y complementos - snacks - medicamentos - vacunas - collares para perros - collares para gatos - concentrados - placas identificadoras - juguetes - cadenas Atendemos cachorros y perros de gran tamaño de las siguientes razas: Affenpinscher, Afgano, Airedale Terrier, Akita, alano, Alaskan Malamute, American Staffordshire Terrier, Basset Hound, Beagle, Bearded Collie, Beauceron, Bedlington Terrier, Bergamasco, Bernés de la Montaña, Bichón Frisé, Bichón Maltés, Bobtail, Border Collie, Borzoi, Boston Terrier, Bouvier, Boxer, Boyero de Berna, Braco, Bull Terrier, BullTerrier, Bulldog, Bulldog Francés, Bulldog Inglés, Cairn Terrier, Cane Corso, Caniche, Cardigan, Carlino, Cavalier King Charles Spaniel, Chihuahua, Chow Chow, Cimarron, Cocker, Cocker Spaniel Americano, Cocker Spaniel Inglés, Collie, Crestado Chino, Cruce, Dachshund, dalmata, Deutsche Drahthaar, Doberman Pinscher, Dogo, Dogo Alemán, Dogo Argentino, Dogo Canario, Dogo De Burdeos, Dálmata, Eskimo Americano, Espagneul Breton, Fox Terrier, Foxhound, Foxhound, french poodle, french podle, Galgo Español, Golden Retriever, Gos D'atura, Gran Danes (Alano), Grifon, Husky Siberiano, Irish Wolfhound, Jack Rusell Terrier, Kelpie, Labrador Retriever, Lebrel, Leonberger, Lhasa Apso, Mastin Napolitano, Mastín de los Pirineos, Mastín Español, Mestizo, Mini Pei, minitoy, Papillon, Pastor, Pastor Alemán, Pastor Belga, Pastor De Brie, Pekinés, Perdiguero, Perro de Aguas, Pinscher Miniatura, Podenco, Pointer, Pomeranian, Presa Canario, Rottweiler, Sabueso, Samoyedo, San Bernardo, Schapendoes, Schipperke, Schnauzer Estándar, Schnauzer Gigante, Schnauzer Miniatura, Scottish Terrier, Setter Inglés, Setter Irlandés, Shar Pei, Shih Tzu, Spitz, Teckel, Terranova, Viszla, uaimaran, Weimaraner, Welsh Terrier, West Highland White Terrier, Whippet, Xoloitzcuintle, yorky, yorki, yorkye, yorkie, Yorkshire Terrier.
11 Sep 2009
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4:26
CRAZY TRAIN BY OZZY OSBOURNE PERFORMED BY JEN AND THE MEN BAND. JENNY JAMES ON VOCALS, PAUL CHALMERS GUITAR, ALAN CAIRNS BASS AND BACK UP VOCALS, MARKO ON DRUMS. PRODUCED AND DIRECTED BY BRIAN MANN
25 Dec 2009
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0:54
Venez découvrir Beechey Island et apprenez en plus sur l'histoire de l’expédition Franklin! Passage obligatoire pour les amoureux d'Histoire, l’île de Beechey est un site de signification particulière dans l’exploration de l’arctique. Le port de l’île Beechey servit à la protection de Sir John Franklin avant de partir pour son exploration du passage nord-ouest.  Plus d’un demi-siècle plus tard, les restes du camp de Franklin, incluant trois sépulcre ont été découverts par des équipes cherchant l’homme perdu. Depuis, L’île sert de base de recherche et sauvetage, Aujourd’hui trois pierres tombales et cairns ont été trouvées, dédiées aux explorateurs du nord. Pour planifier votre voyage au Canada visitez notre site ! Site Web : *******www.canada.travel
28 Jan 2010
775
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*******www.videobillboards****.au/Campervans-for-sale-hire-rental-in-Sydney-Melbourne-Adelaide-Brisbane-Canberra-Darwin-Gold-Coast-Perth-Australia-/ Campervans for sale, hire & rental in Australia, Sydney, Melbourne, Brisbane, Cairns, Perth, Darwin. Offering a range of vehicles (car, campervan, stationwagons) for sale with a guaranteed buyback, and budget priced rentals with unlimited kilometres
25 Mar 2010
101
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www.videobillboards****.au/campervans-camper-vans-campervans-australia-backpacker-campervans-campervans-melbourne-campervans-brisbane-campervans-sydney-campervans-cairns-campervans-darwin-campervans-perth-cheap-campervans-campervan-motorhome-rentals-motorhome-hire/
1 Apr 2010
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*******www.videobillboards****.au/backpacker-campervans-campervans-melbourne-campervans-brisbane-campervans-sydney-campervans-cairns-campervans-darwin-campervans-perth/
1 Apr 2010
165
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1:48
Campervans for sale, hire & rental in Australia, Sydney, Melbourne, Brisbane, Cairns, Perth, Darwin. Offering a range of vehicles (car, campervan, stationwagons) for sale with a guaranteed buyback, and budget priced rentals with unlimited kilometres 1.Australia 2. Perth 3. Cairns 4. Sydney 5. Melbourne 6. Darwin 7. Brisbane 8. Terms without destination sydney melbourne brisbane cairns perth darwin HIT ON LINK ( *******www.youtube****/user/BACKPACKERSAUSTRALIA ) ( *******www.videobillboards****.au/Camper-Vans-Australia-Sydney-Melbourne-Perth-Darwin-Cairns-Brisbane )
15 Apr 2010
182
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VIDEO BILLBOARDS 02 92679799 HIT ON LINK *******www.videobillboards****.au/campervans-camper-vans-campervans-australia-backpacker-campervans-campervans-melbourne-campervans-brisbane-campervans-sydney-campervans-cairns-campervans-darwin-campervans-perth-cheap-campervans-campervan-motorhome-rentals-motorhome-hire/ HIT ON LINK *******www.videobillboards****.au/Tourism-Australia-NSW-South-Coast-Beach-House-Holiday-Accommodation/ *******www.videobillboards****.au/Lets-go-Surfing-bondi-beach-/ *******www.videobillboards****.au/backpacker-campervans-campervans-melbourne-campervans-brisbane-campervans-sydney-campervans-cairns-campervans-darwin-campervans-perth/ *******www.videobillboards****.au/Surf-Camp-Australia-is-the-original-surf-camp-for-beginners/ *******www.videobillboards****.au/Malua-Bay-Beach-House/
19 Apr 2010
175
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2:38
Campervans for sale, hire & rental in Australia, Sydney, Melbourne, Brisbane, Cairns, Perth, Darwin. Offering a range of vehicles (car, campervan, stationwagons) for sale with a guaranteed buyback, and budget priced rentals with unlimited kilometres 1.Australia 2. Perth 3. Cairns 4. Sydney 5. Melbourne 6. Darwin 7. Brisbane 8. Terms without destination sydney melbourne brisbane cairns perth darwin HIT ON LINK ( *******www.youtube****/user/BACKPACKERSAUSTRALIA ) ( *******www.videobillboards****.au/Camper-Vans-Australia-Sydney-Melbourne-Perth-Darwin-Cairns-Brisbane )
26 Apr 2010
237
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0:35
*******bongbastic****/Radon-ethcathinone-(rs)-2-ethylamino-1-phenylpropan-1-one_2.aspx Ethcathinone aussi Ethylpropion, N-2-ethylcathinone et ethylaminopropiophenone, est un stimulant de la phénéthylamine, les amphétamines, et en classes chimiques cathinone. Il s’agit d’un| métabolite de diethylcathinone, à laquelle il agit comme une prodrogue, et est entièrement entièrement totalement responsable des comptes pour ses effets Résultats de résultats. Ethcathinone a été identifié comme un ingrédient à la fois chaque quasi-juridique party pills “, et a également été signalé comme ayant se possédant été vendus comme” ecstasy “dans la ville australienne de Cairns, avec mephedrone. *******bongbastic****/
12 Aug 2010
450
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1:28
Worky**** can help you whether you are a fruit picker in Cairns or a fashion designer from New York. Let the Worky men help you!
24 Sep 2010
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