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image: What Lies Sleeping

What Lies Sleeping

By | March 1, 2016

Why can science still not define this most basic biological process?

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image: Who Sleeps?

Who Sleeps?

By and | March 1, 2016

Once believed to be unique to birds and mammals, sleep is found across the metazoan kingdom. Some animals, it seems, can’t live without it, though no one knows exactly why.

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image: Week in Review: February 22–26

Week in Review: February 22–26

By | February 26, 2016

Questions about how E. coli evolves; spermatids in a dish; fighting bacteria with virus-like molecule; what drives metastasis; antibodies fight Ebola in monkeys

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image: Mitochondrial Activity Predicts Fish Life Span?

Mitochondrial Activity Predicts Fish Life Span?

By | February 25, 2016

Scientists identify an inverse relationship between longevity in killifish and the expression of genes related to cellular respiration.

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image: Similar Data, Different Conclusions

Similar Data, Different Conclusions

By | February 23, 2016

By tweaking certain conditions of a long-running experiment on E. coli, scientists found that some bacteria could be prompted to express a mutant phenotype sooner, without the “generation of new genetic information.” The resulting debate—whether the data support evolutionary theory—is more about semantics than science.

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image: Compound Confounds <em>C. elegans</em> Aging Research

Compound Confounds C. elegans Aging Research

By | February 22, 2016

A drug commonly used in experiments on the model organism can skew the results of aging studies, researchers show.

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image: Aging Shrinks Chromosomes

Aging Shrinks Chromosomes

By | February 5, 2016

A study on human cells reveals how cellular aging affects the 3-D architecture of chromosomes.

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image: Slowing Aging

Slowing Aging

By | February 5, 2016

The removal of senescent cells in mice leads to an increased lifespan and later onset of age-linked diseases, scientists show.

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image: Circadian Clock and Aging

Circadian Clock and Aging

By | February 3, 2016

Whether a critical circadian clock gene is deleted before or after birth impacts the observed aging-related effects in mice.

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image: Hunger Hormone Slows Aging in Mice

Hunger Hormone Slows Aging in Mice

By | February 3, 2016

Signs of getting older are less common among rodents with ramped-up ghrelin production.

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