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a white mouse sits on a blue exercise wheel, looking out onto the shavings below
Mice With a Healthy Gut Microbiome Are More Motivated to Exercise
A neural pathway between the gut and the brain led to the release of dopamine when the mice ran on a wheel or treadmill, but only in the presence of a robust microbiome. 
Mice With a Healthy Gut Microbiome Are More Motivated to Exercise
Mice With a Healthy Gut Microbiome Are More Motivated to Exercise

A neural pathway between the gut and the brain led to the release of dopamine when the mice ran on a wheel or treadmill, but only in the presence of a robust microbiome. 

A neural pathway between the gut and the brain led to the release of dopamine when the mice ran on a wheel or treadmill, but only in the presence of a robust microbiome. 

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Image of the Day: Red-Feathered Finches
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Scientists uncover a potential reason why redder house finches have better health.
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The presence of aromatic greens in with other building materials increased the time birds sat on their eggs, improving the health of the hatchlings.
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The variation may help explain why stocked salmon don’t fare as well in the ocean.
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Why do some obese people actually experience health benefits?
Genetics Paper Retracted
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Due to statistical errors, a Science paper claiming that mutation is responsible for genetic variation is retracted.
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