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Mercury-loving bugs speed help for toxic spills
PARIS — Scientists say they have engineered bacteria that can mop up mercury, a step forward in the goal of using “bioremediation” to cleanse toxic chemicals from the environment. Mercury pollution of water and soil by industrial spills or gold mining is a major hazard because the chemical accumulates up…
Infants with autistic siblings at higher risk: U.S. study
WASHINGTON — Infants have higher risk of developing autism if they have siblings with the disorder, a US study found Monday. The risk that an infant with an older sibling with autism also will develop the disorder, previously estimated at 3-10 percent, is 19 percent, according to the study by…
Tropical Storm Gert strengthening, will brush Bermuda
MIAMI (Reuters) – Tropical Storm Gert strengthened slowly on Sunday on a track toward Bermuda and forecasters said the global reinsurance hub could expect increased winds, rain and surf when the storm passed on its eastern side. Gert, the seventh named storm of what is proving as predicted to be…
Conservationists ask court to stop Idaho, Montana wolf hunts
SALMON, Idaho (Reuters) – Conservation groups on Saturday asked a federal appellate court to stop upcoming hunts in Montana and Idaho that target more than 1,000 wolves. In the request for an emergency injunction, filed electronically to the U.S. Ninth Circuit Court of Appeals, environmentalists argued that the planned hunting…
‘Supergene’ is key to copycat butterflies
PARIS — Since Charles Darwin, biologists have pondered the mystery of “mimicry butterflies”, which survive by copying the wing patterns of other butterflies that taste horrible to their predators, birds. The answer, according to a study released on Friday, lies in an astonishing cluster of about 30 genes in a…
Facing medical torture, Chinese bear reportedly kills cub, then self
Ever wonder if animals are intelligent? Consider this story from the Chinese press, which has been reporting this week on the strange case of a mother bear who broke free of her captors, strangled her cub, then killed herself, all to avoid a life of medical torture. In Chinese traditional…
Chest pain severity not a heart attack indicator
NEW YORK (Reuters Health) – A high degree of pain does not make it any more likely that someone coming into the emergency room with chest pains is having a heart attack, researchers found in a study of more than 3,000 patients. The most severe chest pain was not a…
Strange planet is blacker than coal
PARIS — A planet orbiting a distant star is darker than coal, reflecting less than one percent of the sunlight falling on it, according to a paper published on Thursday. The strange world, TrES-2b, is a gas giant the size of Jupiter, rather than a solid, rocky body like Earth…
Prehistoric marine reptile fossil has embryo inside
A fossil of a prehistoric water reptile has an embryo inside, providing the first evidence that plesiosaurs gave birth to live offspring rather than laying eggs, a US study said Thursday. The 78-million-year-old fossil of the Polycotylus latippinus, a four-flippered swimmer something like a snake-turtle combination, is now on display at the Natural History Museum of Los Angeles County.…
Heart failure linked to memory problems: study
NEW YORK (Reuters Health) – Older patients with heart failure had more memory problems when their heart ailments were advanced, in a new study of adults being evaluated for transplants. But that wasn’t the case in young and middle-aged adults with a type of heart failure marked by a lower-than-normal…
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