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Spiders help scientists discover how muscles relax

Using muscle tissue from tarantulas, an HHMI international research scholar and his colleagues have figured out the detailed structure and arrangement of the miniature molecular motors that control movement. Their work, which takes advantage of a new technique for visualizing tissues in their natural state, provides new insights into the molecular basis of muscle relaxation, and perhaps its activ...

Amber reveals ecology of 30 million year old spiders

Scientists at The University of Manchester and the Manchester Metropolitan University have carried out the first comparative scientific study of ancient spiders trapped in amber more than 30 millions years ago. The study of fossilised spiders from the Baltic (Poland) and the Dominican (Caribbean) regions has revealed new insights into the ecologies of spiders dating back to the Cenozoic pe...

'Scent of a woman' tells male redback spiders to find a mate

If men think finding a nice partner to settle down and raise children with is tough, consider the plight of the male Australian redback spider. Instead of personality conflicts, spats over in-laws and financial worries, imagine that immediately after the first time you have sex, your partner -- who is 100 to 200 times your body weight -- will eat you alive. Not the ideal honeymoon, perhaps...

MIT engineers probe spiders' polymer art

A team of MIT engineers has identified two key physical processes that lend spider silk its unrivaled strength and durability, bringing closer to reality the long-sought goal of spinning artificial spider silk. Manufactured spider silk could be used for artificial tendons and ligaments, sutures, parachutes and bulletproof vests. But engineers have not managed to do what spiders do effortle...

A rarity among arachnids, whip spiders have a sociable family life

Whip spiders, considered by many to be creepy-crawly, are giving new meaning to the term touchy-feely. In two species of whip spiders, or amblypygids, mothers caress their young with long feelers, siblings stick together until they reach sexual maturity, and all mix in social groups. This is surprising behavior for these arachnids long-thought to be purely aggressive and anti-social, acco...
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Louisiana Residents Warned Against Brown Recluse Spiders

A poisonous brown widow spider, a cousin to the well-known black widow, is increasingly being spotted in Louisiana, experts say . It is belongs to a group that is officially known as the "recluse spiders" and are also commonly referred to as "fiddleback" spiders or "violin" spiders because of the violin-shaped marking on the top surface of the cephalothorax (fused head and thorax). <b...
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(Date:7/23/2008)...ce may make the heart grow fonder, but endurance e...tudy conducted at Washington University School of ...nce exercise training for about a year ended up wi...ers also showed that by one metabolic measure, wom..."We know that the heart deteriorates as people get...
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Breaking Biology News(10 mins):Sex and lifespan linked in worms 2Exercise could be the heart's fountain of youth 2Exercise could be the heart's fountain of youth 3Air quality forecasts for China 2QualityMetric Appoints Chief Innovation and Research Officer 10334 1QualityMetric Appoints Chief Innovation and Research Officer 10334 2Abbott to Present at Merrill Lynch Healthcare Conference 10329 1Ventas Enters Agreement to Sell Common Stock 10328 1Ventas Enters Agreement to Sell Common Stock 10328 2Ventas Enters Agreement to Sell Common Stock 10328 3Ventas Enters Agreement to Sell Common Stock 10328 4Ventas Enters Agreement to Sell Common Stock 10328 5Researchers Map Paths Governing Neuron Function 10323 1Researchers Map Paths Governing Neuron Function 10323 2
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