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porpoises in Biological News

Leading scientists rank endangered dolphins, porpoises most in need of immediate action

Leading marine scientists for the first time have assessed dolphin and porpoise populations around the world which are severely threatened by entanglement in fishing gear and recommended nine urgent priorities for action in a report commissioned by the World Wildlife Fund. These nine projects highl...

Dolphins get a lift from delta wing technology

... We can only marvel at the way that dolphins, whales and porpoises scythe through water. Their finlike flippers seem perfectly adapted for maximum aquatic agility. However, no one had ever analysed how the animals' fl...

The 156th Acoustical Society of America Meeting, Nov. 10-14, Miami, Fla.

...oking at the human experience of sound and space." http://www.acoustics.org/press/156th/bader.html . PREY CAPTURE BY HARBOR PORPOISES "Two harbor porpoises were trained to capture live (and dead) fish at our facility, Fjord&Blt, in Kerteminde, Denmark. One actually did this when blindfolded." http://www....

156th Acoustical Society of America Meeting, Nov. 10-14, 2008 in Miami

...ung rather than spoken, simply by repeating it several times over..." http://asa.aip.org/web2/asa/abstracts/search.nov08/asa176.html . HOW HARBOR porpoises CATCH PREY A Danish study of how these animals locate food with short acoustic bursts whose frequency goes up as the predator approaches prey. ht...

Study shows rise in Cornwall's dolphin, whale and porpoise deaths

...tion , has revealed a disturbing rise in the number of whales, dolphins and porpoises found dead on Cornish beaches. The frequency of these mammals, collectively...nd a marked increase from the early 1980s, with common dolphins and harbour porpoises being the worst-affected species. In total, fewer than 50 cetacean strandin...

Scientists fear rare dolphin driven to extinction by human activities

... reduced to only a few hundred animals because of accidental deaths in small-scale fishing nets. In addition to the vaquita, many coastal dolphins and porpoises in other parts of the world are highly vulnerable to being accidentally caught in similar fishing gear. The vaquita and other highly imperiled mar...

Small, smaller, smallest -- The plight of the vaquita

...area rich and diverse in marine mammals. It is somewhat surprising that the porpoises are limited to such a small area when there are no obvious physical barrier...ogenic factors" How can this sad prospect be prevented" The small number of porpoises in the current population cannot be expected to withstand continuing incide...

How ancient whales lost their legs, got sleek and conquered the oceans

...ta from contemporary spotted dolphins and fossils of ancient whales to try to pinpoint the genetic changes that could have caused whales, dolphins and porpoises to lose their hind limbs. More than 50 million years ago the ancestors of whales and dolphins were four-footed land animals, not unlike large dogs....

Virulizin granted orphan drug status in Europe

...h without intervention. The list of dolphins and porpoises that could recover if changes to fishing methods a...ther conservation efforts are made includes harbor porpoises in the Black Sea, where thousands of porpoises are killed each year; Atlantic humpback dolphins o...

Novel targets found for the development of drugs to complement, or replace, statins

...h without intervention. The list of dolphins and porpoises that could recover if changes to fishing methods a...ther conservation efforts are made includes harbor porpoises in the Black Sea, where thousands of porpoises are killed each year; Atlantic humpback dolphins o...
porpoises in Biological Definition

Marine biology

... are five main types of marine mammals. Cetaceans include toothed whales (Suborder Odontoceti ), such as the Sperm Whale , dolphins , and porpoises . Cetaceans also include baleen whales (Suborder Mysticeti ), such as Gray Whales , Humpback Whales , and Blue Whales . Sirenians include m...
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