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General Science news 1234

Sex and lifespan linked in worms: A family of sugar-like molecules controls both

July 23, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet

A group of scientists who set out to study sex pheromones in a tiny worm found that the same family of pheromones also controls a stage in the worms' life cycle, the long-lived dauer larva.


Hybrid 'Muttsucker' Has Genes of Three Species

July 23, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet

In the murky waters of an inconspicuous stream in a remote area of Wyoming, researchers detail the potential impact that an introduced fish, the white sucker, could have on the evolutionary biology of fishes.


Study predicts crop-production costs will jump dramatically in 2009

July 23, 2008 | User rating: 4.4 / 5 after 5 vote(s) | No comments yet

Soaring energy prices will yield sharp increases for corn and soybean production next year, cutting into farmers' profits and stretching already high food costs, according to a new University of Illinois study.


One missing gene leads to fruitless mating rituals

July 23, 2008 | User rating: not shown ( 1 vote(s) ) | No comments yet

Male fruit flies missing a gene for one particular odor receptor become clueless in matters of love, scientists at Duke University Medical Center have discovered.


Biology enters 'The Matrix' through new computer language

July 23, 2008 | User rating: 4.4 / 5 after 8 vote(s) | No comments yet

Ever since the human genome was sequenced less than 10 years ago, researchers have been able to access a dizzying plethora of genomic information with a simple click of a mouse. This digitizing of genomic data—and its public ...


Unique fossil discovery shows Antarctic was once much warmer

July 23, 2008 | User rating: 4.3 / 5 after 22 vote(s) | User comments: 13

A new fossil discovery- the first of its kind from the whole of the Antarctic continent- provides scientists with new evidence to support the theory that the polar region was once much warmer.


Scientists find new clues to explain Amazonian biodiversity

July 23, 2008 | User rating: not rated yet | No comments yet

Ice age climate change and ancient flooding—but not barriers created by rivers—may have promoted the evolution of new insect species in the Amazon region of South America, a new study suggests.


Dino diversity had a long pedigree, says study

July 23, 2008 | User rating: not shown ( 4 vote(s) ) | No comments yet

The belief that dinosaurs underwent explosive species diversification just before they were wiped out is an illusion, for the beasts' main evolutionary shifts took place millions of years before, a study says. ...


Commercial bees spreading disease to wild pollinating bees

July 23, 2008 | User rating: 4.6 / 5 after 10 vote(s) | User comments: 5

Bees provide crucial pollination service to numerous crops and up to a third of the human diet comes from plants pollinated by insects. However, pollinating bees are suffering widespread declines in North America and scientists ...


Researchers Discover Novel Method for Activating Enzymatic Reactions

July 22, 2008 | User rating: 4 / 5 after 6 vote(s) | No comments yet

(PhysOrg.com) -- Researchers at North Carolina State University have discovered a new method for "switching on" enzymatic reactions with precise energy delivery: by using microwave radiation.


Researcher shows evolution of milkweed defense system

July 22, 2008 | User rating: 4.1 / 5 after 8 vote(s) | User comments: 3

(PhysOrg.com) -- The adage that your enemies know your weaknesses best is especially true in the case of plants and predators that have co-evolved: As the predators evolve new strategies for attack, plants ...


Milkweed's evolutionary approach to caterpillars: Counter appetite with fast repair

July 22, 2008 | User rating: 4.9 / 5 after 8 vote(s) | No comments yet

The adage that your enemies know your weaknesses best is especially true in the case of plants and predators that have co-evolved: As the predators evolve new strategies for attack, plants counter with their own unique defenses.


Ultrasonic frogs can tune their ears to different frequencies

July 22, 2008 | User rating: 4.6 / 5 after 7 vote(s) | User comments: 4

Researchers have discovered that a frog that lives near noisy springs in central China can tune its ears to different sound frequencies, much like the tuner on a radio can shift from one frequency to another. ...


WikiPathways gives the people the power to curate

July 22, 2008 | User rating: 4.6 / 5 after 12 vote(s) | No comments yet

The exponential growth of diverse types of biological data presents the research community with an unprecedented challenge to keep the flood of biological data as accessible, up-to-date, and integrated as possible.


New population of highly threatened greater bamboo lemur found in Madagascar

July 22, 2008 | User rating: 4.3 / 5 after 8 vote(s) | No comments yet

Researchers in Madagascar have confirmed the existence of a population of greater bamboo lemurs more than 400 kilometers (240 miles) from the only other place where the Critically Endangered species is known to live, raising ...


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