ScienceDaily Environment Headlines
for Saturday, June 25, 2011
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Some captive chimpanzees show signs of compromised mental health, research shows (June 24, 2011) -- A new study finds that serious behavioral abnormalities, some of which could be compared to mental illness in humans, are endemic among captive chimpanzees. While most behavior of zoo-living chimpanzees is 'normal' in that it is typical of their wild counterparts, abnormal behavior is endemic in this population despite enrichment efforts such as social housing, say researchers. ... > full story
Sepsis: Leaking blood vessels may be cause of infection-spreading condition, researchers suggest (June 24, 2011) -- Researchers have put forward a new theory as to what causes sepsis, an often fatal condition that occurs when infection spreads throughout the body. Leaking blood vessels may actually be a cause of sepsis, rather than a symptom as previously thought. ... > full story
Mantis shrimp eye could improve high-definition CDs, DVDs (June 24, 2011) -- The eye of the peacock mantis shrimp has led an international team of researchers to develop a two-part waveplate that could improve CD, DVD, blu-ray and holographic technology, creating even higher definition and larger storage density. ... > full story
Deep history of coconuts decoded: Origins of cultivation, ancient trade routes, and colonization of the Americas (June 24, 2011) -- DNA analysis of more than 1,300 coconuts from around the world reveals that the coconut was brought under cultivation in two separate locations, one in the Pacific basin and the other in the Indian Ocean basin. What's more, coconut genetics also preserve a record of prehistoric trade routes and of the colonization of the Americas. ... > full story
Northern Eurasian snowpack could be a predictor of winter weather in US, team from UGA reports (June 24, 2011) -- Every winter, weather forecasters talk about the snow cover in the northern US and into Canada as a factor in how deep the deep-freeze will be in the states. A new study indicates they may be looking, at least partially, in the wrong place. ... > full story
Genes at the flick of a light switch: Human cells fitted with synthetic signaling cascade (June 24, 2011) -- Researchers from Switzerland have fitted human cells with a synthetic signaling cascade that can be used to switch on and regulate genes via blue light. This "gene light switch" makes interesting therapies possible, which could be used to treat type 2 diabetes, for instance. ... > full story
Ovenbirds eavesdrop on chipmunks to protect nests (June 24, 2011) -- Ground-nesting birds face an uphill struggle to successfully rear their young, many eggs and fledglings falling prey to predators. Now, scientists have found that some birds eavesdrop on their enemies, using this information to find safer spots to build their nests. ... > full story
Newspaper archives help to understand coastal flooding along the South of England (June 24, 2011) -- A unique study using over 70 years of information from local newspapers has helped to examine the incidence and location of coastal floods in the Solent region of southern England. ... > full story
Discovering lost salmon at sea (June 24, 2011) -- Where Atlantic salmon feed in the ocean has been a long-standing mystery, but new research shows that marine location can be recovered from the chemistry of fish scales. Surprisingly, salmon from different British rivers migrate to feed in separate places, and may respond differently to environmental change. ... > full story
Protein unique to avian retina contributes to visual acuity by helping eyes 'breathe' (June 24, 2011) -- Say what you will about bird brains, but our feathered friends sure have us -- and all the other animals on the planet -- beat in the vision department, and that has a bit to do with how their brains develop. ... > full story
Physicist's discovery alters conventional understanding of sight (June 24, 2011) -- Physicists shed new light on how the visual process is initiated. For almost 50 years, scientists have believed that light signals could not be initiated unless special light-receptor molecules in the retinal cells first changed their shape in a process called isomerization. However, researchers have now demonstrated that visual signals can be initiated in the absence of isomerization. ... > full story
Effects of stress can be inherited, and here's how (June 24, 2011) -- None of us are strangers to stress of various kinds. It turns out the effects of all those stresses can change the fate of future generation, influencing our very DNA without any change to the underlying sequence of As, Gs, Ts and Cs. Now, researchers have new evidence that helps to explain just how these epigenetic changes really happen. ... > full story
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