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Snake venom charms science world: Novel protein from king cobra as drug discovery
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The king cobra continues to weave its charm with researchers identifying a protein in its venom with the potential for new drug discovery and to advance understanding of disease mechanisms.
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Study provides better understanding of how mosquitoes find a host
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The potentially deadly yellow-fever-transmitting Aedes aegypti mosquito detects the specific chemical structure of a compound called octenol as one way to find a mammalian host for a blood meal.
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El Niño and a pathogen, not global warming, killed Costa Rican toad
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Scientists broadly agree that global warming may threaten the survival of many plant and animal species; but global warming did not kill the Monteverde golden toad, an often cited example of climate-triggered extinction, says a new study.
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'Anaconda' meets 'Jurassic Park': Fossil snake from India fed on hatchling dinosaurs
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Sixty-seven million years ago, when dinosaur hatchlings first scrambled out of their eggs, their first -- and last -- glimpse of the world might have been the open jaws of a 3.5-meter-long snake named Sanajeh indicus, based on the discovery in India of a nearly complete fossilized skeleton of a primitive snake coiled inside a dinosaur nest.
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Pesticide atrazine can turn male frogs into females
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The herbicide atrazine, one of the world's most widely used pesticides, wreaks havoc with the sex lives of adult male frogs, emasculating three-quarters of them and turning one in 10 into females, according to a new study. These changes occur at atrazine levels below what the EPA considers safe for drinking water. The changes skew sex ratios in the frog population and could be a major cause of amphibian decline worldwide.
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