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Showing releases 831-840 out of 989.
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Biology Letters of the Royal Society of LondonHow a zebra lost its stripes: Rapid evolution of the quagga
DNA from museum samples of extinct animals is providing unexpected information on the extent and effect of the Ice Age as well as the path of species evolution, according to a report by scientists from Yale University, the Smithsonian Institute and the Max Planck Institute for Evolutionary Anthropology.
Contact: Janet Rettig Emanuel
janet.emannuel@yale.edu
203-432-2157
Yale University
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Critical Reviews in Food Science and NutritionSeaweed could make junk food healthier
Junk food could be made healthier by adding an extract of an exotic type of seaweed, say British scientists, who believe it will be a valuable weapon in the international battle against obesity, diabetes and heart disease and diseases such as bowel cancer.
Contact: Prof Jeff Pearson
J.P.Pearson@newcastle.ac.uk
44-191-222-6996
Newcastle University
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Bronx Zoo bears are new Samsonite gorillas
In a scene reminiscent of the famous Samsonite luggage commercial when a gorilla puts the product's durability to the test, grizzly bears at the Bronx Zoo gave a bear-proof food canister designed for backpackers a real beating, but still could not open it, according to the Wildlife Conservation Society (WCS).
Contact: John Delaney
jdelaney@wcs.org
718-220-3275
Wildlife Conservation Society
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Canadian Journal of ZoologyOtter adaptations: How do otters remain sleek and warm
How do otters stay warm without a thick layer of body fat? Using scanning electron microscopy and polarizing light microsopy, Penn cell biologist John W. Weisel examined the structure of otter hairs for clues to their exceptional insulation abilities. He found that the cuticle surface structure of the underhairs and base of the less-abundant guard hairs are distinctively shaped to interlock, with wedge-shaped fins or petals fitting into wedge-shaped grooves between fins of adjacent hairs.
Contact: Karen Kreeger
karen.kreeger@uphs.upenn.edu
215-349-5658
University of Pennsylvania School of Medicine
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Journal of Micromechanics and MicroengineeringScientists harness the power of pee
Physicists in Singapore have succeeded in creating the first paper battery that generates electricity from urine. This new battery will be the perfect power source for cheap, disposable healthcare test-kits for diseases such as diabetes. This research is published today in the Institute of Physics' Journal of Micromechanics and Microengineering.
Contact: David Reid
david.reid@iop.org
44-207-470-4815
Institute of Physics
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Nature MedicineTadpole soon to help in the fight against cancer and lymphedema
Lymph circulates in our bodies through a complex network of lymphatic vessels, of which little is known. This network is, however, of major importance for the support of the immune system and the fluid in our body. Researchers from VIB are the first to indicate that this network can be studied with the help of tadpoles. This accelerates research of the lymphatic vessel network.
Contact: Ann Van Gysel
ann.vangysel@vib.be
32-924-46611
VIB (the Flanders Institute for Biotechnology)
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NeuronGrasshopper love songs give insight into sensory tuning
As anyone whose nerves have been jangled by a baby's howl or who have been riveted by the sight of an attractive person knows, nature has evolved sensory systems to be exquisitely tuned to relevant input. A major question in neurobiology is how neurons tune the strength of their interconnections to optimally respond to such inputs.
Swartz Foundation, Boehringer Ingelheim Fellowship, Deutsche Forschungsgemeinschaft, German Federal Ministry for Education and Research
Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
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NeuronHow butterflies fly thousands of miles without getting lost revealed by researchers
While "navigation" systems in automobiles are a fairly new (and still costly) innovation, monarch butterflies have managed for millennia to navigate their way for a distance of some 3000 miles (4800 kilometers) each fall from Canada to Mexico (and vice-versa in the spring) without losing their way.
Contact: Jerry Barach
jerryb@savion.huji.ac.il
972-258-82904
The Hebrew University of Jerusalem
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PLOS BiologyHuman cerebellum and cortex age in very different ways
Researchers have found that the two primary areas of the human brain appear to age in radically different ways: The cortex used in higher-level thought undergoes more extensive changes with age than the cerebellum, which regulates basic processes such as heartbeat, breathing and balance. Their work, based on an analysis of gene expression in various areas of human and chimpanzee brains, also shows that the two species' brains age very differently, despite their close evolutionary relationship.
Bundesministerium fur Bildung und Forschung, Burroughs Wellcome Fund, William F. Milton Fund, Pew Foundation, National Science Foundation
Contact: Steve Bradt
steve_bradt@harvard.edu
617-496-8070
Harvard University
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Key to elephant conservation is 'in the sauce'
What do hot sauce aficionados and African elephants have in common? They both feel the burn of chilli peppers, the key ingredient for resolving human-elephant conflicts in Africa while raising money for farmers and conservation.
Contact: John Delaney
jdelaney@wcs.org
718-220-3275
Wildlife Conservation Society
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Showing releases 831-840 out of 989.
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