Life
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We summarize the week's scientific breakthroughs every Thursday.
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Science & SocietyBook Review: The Immortal Life of Henrietta Lacks by Rebecca Skloot
In her new book, science writer Rebecca Skloot describes how Henrietta Lacks' cells changed the face of modern medical science.
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Health & MedicineCats attracted to ADHD drug, a feline poison
Since 2004, drugs designed for use by people have been the leading source of poisonings among companion animals, according to the national Animal Poison Control Center in Urbana, Ill. And among cats, Adderall – a combination of mixed amphetamine salts used to treat attention deficit hyperactivity disorder – has quickly risen to become one of the most common and dangerous of these pharmaceutical threats.
By Janet Raloff -
Health & MedicineFor a lucky few, ‘dioxins’ might be heart healthy
Dioxins and their kin are notorious poisons. They work by turning on what many biologists had long assumed was a vestigial receptor with no natural beneficial role. But it now appears that in a small proportion of people, this receptor may confer heart benefits.
By Janet Raloff -
Health & MedicineFirst complete look at families’ genes
Comparing the complete genetic material of family members pinpoints genes involved in three rare inherited diseases.
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LifeChicken cells have strong sense of sexual identity
In birds, hormones may not be the last word in determining males and females.
By Susan Milius -
LifeEvolutionary genetic relationships coming into focus
Researchers have filled in about 40 percent of the tree of life for mammals and birds, but other vertebrates lag behind.
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LifeChameleon tongues snappy even when cold
Collagen gives the creatures a bug-catching advantage in chilly conditions.
By Sid Perkins -
LifeBoys and girls differ in genetic response to what mom eats
Expectant mothers’ diets may influence gene activity differently in the placentas that feed sons and daughters, a new mouse study reveals.
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Health & MedicineGene linked to pain perception
A common genetic variant that appears to increase sensitivity could lead to the development of better medications.
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EarthGreen-ish pesticides bee-devil honey makers
Pesticides are agents designed to rid targeted portions of the human environment of undesirable critters – such as boll weevils, roaches or carpenter ants. They’re not supposed to harm beneficials. Like bees. Yet a new study from China finds that two widely used pyrethroid pesticides – chemicals that are rather “green” as bug killers go – can significantly impair the pollinators’ reproduction.
By Janet Raloff -
EarthCountry ants make it big in the city
Odorous house ants act like invading aliens when they discover urban living.
By Susan Milius -
LifeMature females key to beluga sturgeon survival
Hatchery fish are unlikely to restore caviar-producing fish populations, a new assessment finds.