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A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two.

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image: How Exercise Might Fight Cancer

How Exercise Might Fight Cancer

By Jef Akst | September 8, 2017

Epinephrine’s activation of the signaling pathway Hippo is responsible for the in vitro tumor-fighting effects of serum from women who worked out.

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image: Booger Bacteria’s Sweet Immune Suppression

Booger Bacteria’s Sweet Immune Suppression

By Ruth Williams | September 6, 2017

Sweet taste receptor-activating molecules produced by sinus microbes suppress the local innate immune system in humans.

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image: Bubbles for Broken Bones

Bubbles for Broken Bones

By Ruth Williams | September 1, 2017

Ultrasound-stimulated microbubbles enable gene delivery to fix fractures.

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image: Discovery of the Malaria Parasite, 1880

Discovery of the Malaria Parasite, 1880

By Shawna Williams | September 1, 2017

Most didn’t believe French doctor Charles Louis Alphonse Laveran when he said he’d spotted the causative agent of the disease—and that it was an animal.

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image: Far-Out Science

Far-Out Science

By Mary Beth Aberlin | September 1, 2017

How psychedelic drugs and infectious microbes alter brain function

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image: Decoding the Tripping Brain

Decoding the Tripping Brain

By Diana Kwon | September 1, 2017

Scientists are beginning to unravel the mechanisms behind the therapeutic effects of psychedelic drugs.

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image: Infographic: The Brain on Psychedelics

Infographic: The Brain on Psychedelics

By Diana Kwon | September 1, 2017

Understanding how hallucinogenic drugs affect different neural networks could shed light on their therapeutic potential.

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The new technique helped pig tibias heal in just eight weeks.

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image: Smoking on a Chip

Smoking on a Chip

By The Scientist Staff | September 1, 2017

A new device from the Wyss Institute at Harvard University simulates the effects of cigarette smoke on human lungs.

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