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Know it's a placebo? Study shows the 'medicine' could still work Posted: 24 Jul 2015 10:56 AM PDT A new study shoes that under certain conditions, research participants who know a treatment they are receiving to ease pain is a placebo with no medical value, it still works. |
Bossy rooster takes lead vocal of cock-a-doodle-do Posted: 24 Jul 2015 05:19 AM PDT From ancient times, people have been aware of the rooster's "cock-a-doodle-do" that marks the break of dawn, but has anyone wondered who crows first? In a new study, biologists have revealed that there is actually a systematic rule based on social ranking that determines the order of crowing in roosters. |
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