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The Scientist

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image: Early freshwater life

Early freshwater life

By Cristina Luiggi | May 19, 2011

Tiny fossil tracks embedded in a California rock formation that was once part of an ancient river may be evidence that freshwater ecosystems arose around 100 million years earlier than what is generally believed.

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image: Opinion: Progress toward an HIV/AIDS vaccine

Opinion: Progress toward an HIV/AIDS vaccine

By Harriet L. Robinson | May 14, 2011

Recent successes and ongoing efforts to develop a successful vaccine

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image: Tylenol tied to blood cancer

Tylenol tied to blood cancer

By Jef Akst | May 14, 2011

Chronic users of acetaminophen (Tylenol) have a higher risk of developing blood cancer, according to a study published this week in the Journal of Clinical Oncology.

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image: Gays have higher cancer risk?

Gays have higher cancer risk?

By Jef Akst | May 14, 2011

Gay men are nearly twice as likely to report that they've had cancer as heterosexual men, according to a US health survey published in Cancer.

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image: Engineered proteins for fighting flu

Engineered proteins for fighting flu

By Cristina Luiggi | May 14, 2011

In a feat of computational biology, researchers design novel proteins capable of neutralizing a key influenza protein.

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image: Vaccine primes T-cells for SIV

Vaccine primes T-cells for SIV

By Hannah Waters | May 14, 2011

A new vaccine that uses a persistent virus vector controlled SIV in 50 percent of tested monkeys

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image: Micro Farmers

Micro Farmers

By Cristina Luiggi | May 1, 2011

Columbia University evolutionary ecologist Dustin Rubenstein explains just why it's so interesting and important to find slime molds that engage in a form of agriculture.

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image: One Hip Dino

One Hip Dino

By Jef Akst | May 1, 2011

A closer look at some dinosaur bones accumulating dust since their 1994 discovery reveals a new, athletic sauropod species.

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image: Power Failure

Power Failure

By Megan Scudellari | May 1, 2011

Does mitochondrial dysfunction lie at the heart of common, complex diseases like cancer and autism?

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image: Wrestling with Recurrent Infections

Wrestling with Recurrent Infections

By Gayatri Vedantam and Glenn S. Tillotson | May 1, 2011

Clostridium difficile is evolving more robust toxicity, repeatedly attacking its victims, and driving the search for alternative therapies to fight the infection.

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