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Warmer ocean brings fewer sardines to S.Africa

Millions of sardines have begun their annual migration down South Africa's east coast, but fewer fish are making the journey due to rising ocean temperatures, a researcher said Monday.

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Bioethicists call for federal regulation of genetic ancestry testing

(PhysOrg.com) -- As the popularity of take-home DNA kits to trace ancestry or calculate the risk for serious medical conditions grows, there is an increasingly critical need for federal oversight of...

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Carbohydrate acts as tumor suppressor

Scientists at Burnham Institute for Medical Research (Burnham) have discovered that specialized complex sugar molecules (glycans) that anchor cells into place act as tumor suppressors in breast and...

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Scientists discover a new mechanism controlling neuronal migration

The molecular machinery that helps brain cells migrate to their correct place in the developing brain has been identified by scientists at St. Jude Children's Research Hospital. The finding offers new...

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Baby whale's first breath caught on camera off Australia

Australian scientists have photographed a humpback whale helping a newborn calf take what appears to be its first breath, a rare event described as the "Holy Grail" for whale-watchers.

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New imaging studies reveal mechanics of neuron migration

(PhysOrg.com) -- The development of the brain proceeds a little like the European settlement of North America. The earliest pioneers settled on the east coast with subsequent waves of settlers forming...

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Glass-walled buildings can mean death for birds, killing 1 to 5 percent of...

The front of Temple University's student center is an almost seamless wall of glass, reflecting trees and sky in lifelike detail and adding visual appeal to the urban landscape.

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Electronic medicine, without borders?

Disease knows no borders and now researchers in Europe and the Mediterranean shoreline are using electronic infrastructures (e-Infrastructures) to coordinate and cooperate internationally.

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Researchers identify key factor that stimulates brain cancer cells to spread

Researchers funded by the National Institutes of Health have found that the activity of a protein in brain cells helps stimulate the spread of an aggressive brain cancer called glioblastoma multiforme...

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'Second hit' pushes noninvasive breast cancer towards deadly metastasis

A new study identifies a molecule that acts cooperatively with a well known oncoprotein to drive progression of noninvasive breast cancer to metastatic, life-threatening disease. The research findings,...

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Migrating birds chill to fatten up

Marathon runners are famed for pasta packing in the days before a big run but when tiny passerine birds set out on their epic migrations, the distances are too great to cover on the energy reserves...

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Reactive oxygen's role in metastasis

Researchers at the Burnham Institute for Medical Research have discovered that reactive oxygen species, such as superoxide and hydrogen peroxide, play a key role in forming invadopodia, cellular...

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Australian population growth fastest for 50 years: data

Australia's population grew at its fastest rate in 50 years in the 12 months to March thanks to a surge in migrant numbers, official figures showed Tuesday.

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Juvenile bluefin tunas can dive to depths of more than 1000 meters

According to the AZTI-Tecnalia researchers, the first estimations of the geographical location of the recovered tag revealed that this fish had undertaken migrations between the Azores and Portugal...

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Panama butterfly migrations linked to El Nino, climate change

A high-speed chase across the Panama Canal in a Boston Whaler may sound like the beginning of another James Bond film—but the protagonist of this story brandishes a butterfly net and studies the...

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Migratory route of Eleonora's falcon revealed for first time

Satellite tracking has allowed a research team to uncover the mysteries of the migration of Eleanora's falcon for the first time. In total, the bird flies more than 9,500 kilometres across the African...

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New CReAM research on the factors that shape individual attitudes towards...

A new research paper from CReAM (Centre for Research and Analysis of Migration at UCL) investigates the factors which determine individual attitudes towards migration policy.

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Salmon migration mystery explored on Idaho's Clearwater River

(PhysOrg.com) -- Temperature differences and slow-moving water at the confluence of the Clearwater and Snake rivers in Idaho might delay the migration of threatened juvenile salmon and allow them to...

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Discovery of a Retrograde or Highly Tilted Extrasolar Planet

Astronomers have found that the extrasolar planet HAT-P-7b has a retrograde or highly tilted orbit. Studying such planets is important in understanding the diversity of planetary systems and assessing...

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Crosstalk between critical cell-signaling pathways holds clues to tumor...

Two signaling pathways essential to normal human development - the Wnt/Wingless (Wnt) and epidermal growth factor receptor (EGFR) pathways - interact in ways that can promote tumor cell invasion and...

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