This South American hummingbird uses its long beak to sip nectar stored deep inside flowers.
By The Scientist Staff | April 22, 2013
Wikimedia, Joseph C Boone
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By Kate Yandell
Inhibiting a small regulatory RNA appears to improve cardiac function in mice with surgically induced heart problems.
By Bob Grant
Judy Mikovits, the controversial researcher who claimed to establish a link between chronic fatigue syndrome and a virus, has coauthored a book set to publish in May.
By Tracy Vence
In light of a study that showed blood-based biomarkers could predict future cognitive impairment, researchers discuss statistical analyses and the problem of false positives.
View the March 2014 contents.
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