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» aging and evolution

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Contributors

By | March 1, 2015

Meet some of the people featured in the March 2015 issue of The Scientist.

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Drunk Monkeys

By | March 1, 2015

UC Berkeley biologist Robert Dudley explains his "drunken monkey" hypothesis for how humans developed a taste for alcohol.

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image: Falling Out of the Family Tree

Falling Out of the Family Tree

By | March 1, 2015

A mutation in an ethanol-metabolizing enzyme arose around the time that arboreal primates shifted to a more terrestrial lifestyle, perhaps as an adaptation to eating fermented fruit.

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Growth Hormone Guidance

By | March 1, 2015

Intact growth hormone signaling pathways are needed for methionine restriction to extend mouse lifespan.

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Long Live Collagen

By | March 1, 2015

Increased collagen expression is a common feature of many different pathways to extended longevity in worms.

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image: Of Cells and Limits

Of Cells and Limits

By | March 1, 2015

Leonard Hayflick has been unafraid to speak his mind, whether it is to upend a well-entrenched dogma or to challenge the federal government. At 86, he’s nowhere near retirement.

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Quantity or Quality?

By | March 1, 2015

Living longer doesn’t necessarily mean living healthier.

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Rethinking Telomeres

By | March 1, 2015

Not only do telomeres protect the ends of chromosomes, they also modulate gene expression over cells’ lifetimes.

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image: Sharing Longevity Data

Sharing Longevity Data

By | March 1, 2015

Aging research would greatly benefit from consistently making annotated life span data available.

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Speaking of Science

By | March 1, 2015

March 2015's selection of notable quotes

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