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2011/01/12

'Vampire' frog species found in Vietnam

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'Vampire' frog species found in Vietnam

SYDNEY (UPI) -- A species of flying frog discovered in southern Vietnam whose tadpoles have strange black fangs has been dubbed the "vampire" flying frog, researchers say.

A scientist from the Australian Museum in Sydney who discovered the species says the "flying" part is because it uses its webbed toes to glide between treetops, the Australian Broadcasting Corp. reported Thursday.

But it's the fangs sported by the tadpoles that puzzle Jodi Rowley.

"We don't know of anything quite like this, that's for sure, so we're taking a lot of time to work out why on Earth they have these fangs," Rowley said.

"Maybe it's got something to do with what they eat.

"They breed in very small pools of water that are found in the holes in the trunks of trees, so maybe they eat something particularly strange up there," she said.

Copyright 2011 by United Press International

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New telescope array to look back into time

LONDON (UPI) -- A new network of telescopes in Europe will see further into space and peer further back in time, astronomers say.

A network of 77 radio telescopes will detect low-frequency radio signals coming from outer space, giving a view of events that occurred far in the universe's past due to the time it takes for the radio waves to reach Earth, The Daily Telegraph reported this week.

Astronomers say they hope to find clues to how the first stars and galaxies formed after the Big Bang.

The far-flung network of telescopes in Europe, linked with two other radio telescopes in the Southern Hemisphere, will allow astronomers to sweep large sections of the sky in a single night and increase the chances of spotting previously unseen objects in space.

"Detecting low-frequency radio waves means we can look deeper into space than has ever been possible before and means we will be able to conduct the first studies of a time known as the epoch of reionization," University of Southampton astronomer Rob Fender said.

"This was when the universe moved out of its so-called dark ages in the first billion years after the Big Bang and the first stars and galaxies began to form."

"By looking this far back, we can hopefully find out more about what caused this to happen and what these early parts of the universe looked like."

Copyright 2011 by United Press International

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Gulf spill could yield climate change clue

COLLEGE STATION, Texas (UPI) -- Bacteria consumed almost all the methane released in the Gulf of Mexico oil spill, which may give clues to climate change in the arctic, U.S. researchers say.

Scientists say bacteria, evolved to process naturally seeping methane, multiplied dramatically in the gulf following the April explosion that sank a BP oil rig and spawned the leaking of millons of barrels of oil, the BBC reported Friday.

This has scientists looking at the arctic seabed and its fast stores of methane, the release of which could accelerate global warming around the world.

The gulf research could help scientists predict how serious methane releases in the arctic could be, how much might be consumed by bacteria in seawater and how much would make it into the atmosphere.

"In the arctic, there definitely would be some sort of microbial response; and in most places on the sea floor that have the capacity for massive release, there will be some seepage that will help to populate the water with microbes that could respond," lead researcher John Kessler of Texas A&M University said.

Research ships in the arctic have regularly found evidence of methane bubbling into the atmosphere.

But scientists caution there are big differences between the Gulf of Mexico leak and potential methane sources in the arctic, which lie in much shallower waters.

The shallower the water, the less time methane would spend in it and in contact with bacteria, making absorption less likely, they said.

Copyright 2011 by United Press International

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Name change for modified foods suggested

LONDON (UPI) -- Genetically modified foods might be more acceptable to the public if renamed as "vaccinated" or "inoculated," a British agricultural scientist says.

Anti-modified food campaigners immediately attacked the proposal by Bill Clark of Rothamsted Research agricultural station as a "completely desperate" idea, The Daily Telegraph reported Friday.

Clark said the renaming could help consumers understand the science and convince millions of families, the majority of whom are skeptical or outright hostile to genetically modified foods, the newspaper reported.

"Fifty years ago if you told parents you were going to vaccinate their child against measles that would sound horrendous," Clark said. "Now it is considered essential."

"But if we introduce a small part of a virus into a plant they would immediately say that's horrendous. But that's what you are doing with (genetically modified foods)," he said.

"We need a new language," he said. "Perhaps vaccination or inoculation is less scary for the public."

Clark's idea to "rebrand" genetically modified foods was attacked by Peter Melchett, policy director at the Soil Association, which campaigns for organic food and farming.

"This is the biggest load of desperate rubbish I've ever heard," he said.

"And they've tried this before. Back in the 1980s no one had heard of GM. It was called genetic engineering, and they thought it would sound nicer if they called it GM. It didn't work then and it won't work now," Melchett said.

Copyright 2011 by United Press International

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