The initial motivation was to estimate the age structure of a fruit fly population, the result a fundamental theorem that can help determine the age distribution of essentially any group.
Plants & Animals
Oct 6, 2014
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Depictions of animals in ancient Egyptian artifacts have helped scientists assemble a detailed record of the large mammals that lived in the Nile Valley over the past 6,000 years. A new analysis of this record shows that ...
Ecology
Sep 8, 2014
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Dengue fever and West Nile fever are mosquito-borne diseases that affect hundreds of millions of people worldwide each year, but there is no vaccine against either of the related viruses.
Cell & Microbiology
Feb 6, 2014
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US archaeologists have uncovered the tomb in southern Egypt of a previously unknown pharaoh who ruled 3,700 years ago, antiquities officials said on Wednesday.
Archaeology
Jan 15, 2014
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Scientists estimate that there is a minimum of 320,000 viruses in mammals awaiting discovery. Collecting evidence of these viruses, or even a majority of them, they say, could provide information critical to early detection ...
Cell & Microbiology
Sep 3, 2013
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(Phys.org) —Wolbachia are intracellular bacteria that infect invertebrates at pandemic levels, including insects that cause such devastating diseases as Dengue fever, West Nile virus, and malaria. While Wolbachia-based ...
Cell & Microbiology
Jul 4, 2013
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(Phys.org) —Marine biologists John Jett and Jeffrey Ventra of Stetson University and Louisiana State University respectively have published a paper in Journal of Marine Animals and Their Ecology that suggests captive orca ...
The richer the assortment of amphibian species living in a pond, the more protection that community of frogs, toads and salamanders has against a parasitic infection that can cause severe deformities, including the growth ...
Plants & Animals
Feb 13, 2013
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Ancient pollen and charcoal preserved in deeply buried sediments in Egypt's Nile Delta document the region's ancient droughts and fires, including a huge drought 4,200 years ago associated with the demise of Egypt's Old Kingdom, ...
Earth Sciences
Aug 16, 2012
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Researchers have identified enzymes and biochemical compounds called lipids that are targeted and modified by the dengue virus during infection, suggesting a potential new approach to control the aggressive mosquito-borne ...
Cell & Microbiology
Mar 22, 2012
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