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Tag: "sand" at biology news

Alleged 40,000-year-old human footprints in Mexico much, much older than thought

...lity that the original ash had been weathered into sand that early humans walked through before the sand was welded into rock again. "Imagine two-millimeter-wide BBs cemented together where they're touchi...

Overfishing may drive endangered seabird to rely upon lower quality food

...s rely more upon krill and mid-level prey, such as sand lance and young rockfish, compared with their historic counterparts. The researchers found that while ocean temperature was important, the era when the birds lived had a far greater impact on pre-breeding diet. That is, the murrelet diet in the era ...

Scientists pinpoint inflammation gene

...rmaceuticals. The company was studying the desert sand rat, an animal that, like humans, has certain indi...enex researchers found that the obese and diabetic sand rats exhibited a different pattern of a previously undiscovered gene, which is now known to be SEPS1...

Deep treasure to be found in Oculina Bank

...es with the type of habitat they indicate, such as sand bottom, coral ledges, or coral rubble, allowing more accurate assessment of the extent of the reefs and likely identification of previously unknown coral features. "Understanding the extent of the reefs and where the most important habitats are w...

Researchers: Treated wood poses long-term threat

... an untreated deck. Not only that, but a layer of sand underneath the deck had arsenic levels 15 to 30 ti...nd levels, while water that percolated through the sand also was contaminated by the toxic metal. "Only a small fraction leaches in any given year," Solo-G...

North & South American researchers find architectural abnormalities in T. cruzi ribosome

...ss in Africa, and Leishmania, a parasite spread by sand flies. Higher resolution models of the ribosome structure will be needed to design targeted drugs, Frank said. ...

Virginia Tech, Nanjing Institute researchers discover half-billion year-old fossils

... are mostly preserved in sandstone, and the coarse sand grains limit how much we can learn about the fine-scale morphologies of these fossils." Partly because of this limitation, scientists cannot agree on the fine-scale anatomy of Ediacara organisms and have been debating for decades their relationships...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

...y a protozoan, Leishmania infantum, transmitted by sand fly bites. There is no vaccine for this disease, w...t uses as vector an insect resembling a midge, the sand fly, colonizing the intestine and then the salivary glands. The female insect feeds on mammals?blood...

Squeezing out dune plants

...al erosion, global sea-level rise, and the loss of sand dune plant habitats" Researchers from Texas A&...derstand the effects of erosion and development on sand dune plants. Their research appears in the September issue of Frontiers in Ecology and the Environme...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...gued to discover among other things two species of sand flea-like crustaceans (amphipods) which, though familiar, had never before been found in an ice environment. Animal density far higher than expected "Overall, the densities of animals are much higher than expected," says Census researcher Dr. Bodil...

Searching the depths of the straits of Florida for disease cures

...hat's why we're going." Cay Sal is a 60-mile wide sand bank fringed with a few small islands and surrounded on all sides by the deep Straits of Florida and the swiftly flowing Florida Current, which joins with the Antilles Current to form the Gulf Stream off Central Florida. Besides the Cay Sal Bank, the...

OneWorld Health drug receives 'Orphan' designation from U.S. and European regulatory agencies

...("black fever"), is a fatal disease transmitted by sand flies, which spread leishmania parasites that attack internal organs. An estimated 1.5 million people worldwide are currently infected; the number of new VL cases per year is estimated at 500,000; and as many as 200,000 people die annually. More than...

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