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Out of Africa: Scientists uncover history of honey bee
10-25-2006 · EurekAlert!"Every honey bee alive today had a common ancestor in Africa" is one conclusion drawn by a team of scientists that probed the origin of the species and the movements of introduced populations, including African "killer" bees in the New World.
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Keywords: africa, scientists, uncover, history, honey, bee, scientist
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- Michigan State researcher traces the evolution of honey bee gender
10-27-2006 · EurekAlert!
A first-of-its-kind evolutionary strategy discovered among invertebrate organisms -- or honey bees -- shows how a complex genetic mechanism determines gender and maximizes gene transmission to the next generation of several bee species."This research gives us a better understanding of the sex-determining system of honey bees, as well as the age and evolutionary history of the csd (complementary sex determination) gene," said Zachary Huang, an MSU associate professor of entomology.
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- Scientists discover new species of giant elephant-shrew
02-01-2008 · EurekAlert!
Although there is unquestionably much left to be discovered about life on Earth, charismatic animals like mammals are usually well documented, and it is rare to find a new species today -- especially from a group as intriguing as the elephant-shrews, monogamous mammals found only in Africa with a colorful history of misunderstood ancestry.
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- Connection between virus and Colony Collapse Disorder in bees
09-06-2007 · EurekAlert!
A team led by scientists from the Columbia University Mailman School of Public Health, Pennsylvania State University, the USDA Agricultural Research Service, University of Arizona, and 454 Life Sciences has found a significant connection between the Israeli Acute Paralysis Virus (IAPV) and Colony Collapse Disorder (CCD) in honey bees. The findings, an important step in addressing the disorder that is decimating bee colonies across the country, are published in the journal Science this week.
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- Detecting explosives with honeybees
11-27-2006 · EurekAlert!
Scientists at Los Alamos National Laboratory have developed a method for training the common honey bee to detect the explosives used in bombs.
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- For honey bee queens, multiple mating makes a difference
10-08-2007 · EurekAlert!
The success of the “reign” of a honey bee queen appears to be determined to a large degree by the number of times she mates with drone bees. That is what research by scientists in the Department of Entomology and W.M. Keck Center for Behavioral Biology at North Carolina State University suggests. Their research was published Oct. 3 in the online scientific journal PLoS ONE
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- Research upsetting some notions about honey bees
12-11-2006 · EurekAlert!
Genetic research, based on information from the recently released honey bee genome, has toppled some long-held beliefs about the honey bee that colonized Europe and the U.S. According to research published recently in Science, an international professional journal published by the American Association for the Advancement of Science, the four most common subspecies of honey bee originated in Africa and entered Europe in two separate migrations.
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- Scientists identify 36 genes, 100 neuropeptides in honey bee brains
10-25-2006 · EurekAlert!
From humans to honey bees, neuropeptides control brain activity and, hence, our behaviors. Understanding the roles these peptides play in the life of a honey bee will assist researchers in understanding the roles they play in their human counterparts.
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- Microfossils unravel climate history of tropical Africa
03-23-2007 · EurekAlert!
Scientists from the NIOZ Royal Netherlands Institute for Sea Research obtained for the first time a detailed temperature record for tropical central Africa over the past 25,000 years. The scientists developed an entirely new method to reconstruct the history of land temperatures based on the molecular fossils of soil bacteria. The results have been published in this week's issue of Science.
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- Icelandic volcano caused historic famine in Egypt, says Rutgers-based team
11-21-2006 · EurekAlert!
An environmental drama played out on the world stage in the late 18th century when a volcano killed 9,000 Icelanders and brought a famine to Egypt that reduced the population of the Nile valley by a sixth. A study by three scientists demonstrates a connection between these two widely separated events, and is the first to conclusively establish the linkage between high-latitude eruptions and the water supply in North Africa.
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- Prehistoric origins of stomach ulcers uncovered
02-07-2007 · EurekAlert!
Scientists have discovered that the ubiquitous bacteria that causes most painful stomach ulcers has been present in the human digestive system since modern man migrated from Africa over 60,000 years ago. They compared DNA sequence patterns of humans and the Helicobacter pylori bacteria now known to cause most stomach ulcers and found that the genetic differences between human populations that arose as they dispersed from Eastern Africa over thousands of years are mirrored in H.pylori.
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