Pond Snail Current Events | Pond Snail News | 5
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Virtual duck bills demonstrate species coexistence
Ecologists continue to debate how different species manage to coexist. If two species use identical resources, such as food, invariably one will be more efficient and out-compete the other. The classical explanation is that each species has evolved morphological or physiological traits that allow it to exploit some resources more efficiently than... view more... (2007-02-28)
Tiny lasers get a notch up
Tiny disk-shaped lasers as small as a speck of dust could one day beam information through optical computers. Unfortunately, a perfect disk will spray light out, not as a beam, but in all directions. view more (2009-01-23)
Ancient antibody molecule offers clues to how humans evolved allergies
Scientists funded by the Biotechnology and Biological Sciences Research Council (BBSRC) have discovered how evolution may have lumbered humans with allergy problems. view more (2008-06-13)
Fundamental facts about environmental hormones: text of speech by Dr Susan Jobling at the BA Festival of Science 2004
Fundamental facts about environmental hormones view more (2004-09-07)
Dissapearing arctic lakes linked to climate change
Continued arctic warming may be causing a decrease in the number and size of Arctic lakes. The issue is the subject of a paper published in the June 3 issue of the journal "Science." The paper, titled, "Disappearing Arctic Lakes" is the result of a comparison of satellite data taken of Siberia in the early 1970s to data from... view more... (2005-06-06)
A new cloaking method
University of Utah mathematicians developed a new cloaking method, and it's unlikely to lead to invisibility cloaks like those used by Harry Potter or Romulan spaceships in "Star Trek." Instead, the new method someday might shield submarines from sonar, planes from radar, buildings from earthquakes, and oil rigs and coastal structures... view more... (2009-08-17)
Inside rocks, implications for finding life on Mars
If a future space mission to Mars brings rocks back to Earth, Schopf said the techniques he has used, called confocal laser scanning microscopy and Raman spectroscopy, could enable scientists to look at microscopic fossils inside the rocks to search for signs of life, such as organic cell walls. view more (2006-02-01)
Red-eyed treefrog embryos actively avoid asphyxiation inside their eggs
Boston University undergraduate Jessica Rogge and associate professor Karen Warkentin, working at the Smithsonian Tropical Research Institute's laboratories in Gamboa, Panama, discovered that frog embryos at a very early developmental stage actively respond to oxygen levels in the egg-as reported in the Nov. 7, 2008 issue of the Journal of... view more... (2008-11-03)
Paramecia Adapt Their Swimming to Changing Gravitational Force
For many single-celled organisms living in water, the force is always against them. The classic example is the slipper-shaped paramecium, which consistently swims harder going up than going down, just to keep from sinking. view more (2006-09-19)
Proteins necessary for brain development found to be critical for long-term memory
A type of protein crucial for the growth of brain cells during development appears to be equally important for the formation of long-term memories, according to researchers at UC Irvine. view more (2006-09-06)
MIT material puts new spin on electronics
Researchers at MIT's Francis Bitter Magnet Lab have developed a novel magnetic semiconductor that may greatly increase the computing power and flexibility of future electronic devices while dramatically reducing their power consumption. view more (2006-05-25)
TU Delft demonstrates for the first time how light squeezes through small holes
How does light pass through a tiny hole" For the first time, Dr Aurele Adam and Prof. Paul Planken of Delft University of Technology, in conjunction with two South Korean and one German research groups, have succeeded in mapping this process properly. view more (2008-05-09)
University of Ulster spearheads giant leap forward in medicine
Researchers at the University of Ulster have uncovered a vital weapon in the fight against killer conditions like cancer and heart disease - frog venom. The team, headed by Professor Chris Shaw, has discovered that molecules called peptides, secreted by rain forest frogs to ward off predators, have the potential to: * Dramatically... view more... (2001-09-19)
Leptin found to control appetite and limb development in frogs
Leptin, the hormone secreted by fat cells that plays an important role in food intake, has been described for the first time in a cold-blooded vertebrate, the South African clawed frog Xenopus. view more (2006-06-13)
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