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Health officials say there's very little risk to humans from the bird flu outbreak among dairy cattle, but there's still much they don't know. Here are four questions scientists are trying to answer.
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Idaho's biggest hospital system says the number of people needing flights out of Idaho for emergency abortions is up sharply since the state's abortion ban took effect.
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Although federal health officials say the risk to the public remains low, traces of bird flu have been found in pasteurized milk on store shelves.
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After studying various species earlier this month, some scientists now say they understand the origin of animal behavior during solar eclipses.
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Federal officials and scientific experts say the virus detected in retail milk samples may be inactive and unable to cause an infection.
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A research lab in Flagstaff, Ariz., is trying to leverage a 1970s discovery into a safe and desirable alternative for men who want to prevent pregnancy.
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At issue is a clash between federal and state law about how pregnant women must be treated in the emergency room.
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Researchers have been able to reverse the effects of a syndrome that affects brain development in a brain organoid.
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The Supreme Court appeared sharply divided over its latest abortion case, which looks at whether a state may ban medical termination of a pregnancy if the woman's health, but not life, is in danger.
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Surgeons transplanted a kidney and thymus gland from a gene-edited pig into a 54-year-old woman in an attempt to extend her life. It's the latest experimental use of animal organs in humans.
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Over the past few decades, psychologists have begun to understand how parents across many cultures teach their children to build deep, fulfilling relationships with their siblings.
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The new rules mean 4 out of 5 nursing homes will need more aides and nurses. Unions hailed the change, but advocates say it's not enough care, while nursing home owners say it's an "impossible task."