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image: Stressed Rodents Make Different Choices

Stressed Rodents Make Different Choices

By Katarina Zimmer | March 1, 2018

Chronic stress tweaks a circuit in the brain that influences how lab rodents make tough decisions. 

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The variation may help explain why stocked salmon don’t fare as well in the ocean.

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Puerto Rico’s Cayo Santiago has hosted decades of research in cognition, primatology, immunization, and other areas.

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Researchers find consistent behaviors and brain activity in an international study.

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image: Sex Differences in Opioid Analgesia: A Complicated Picture

Sex Differences in Opioid Analgesia: A Complicated Picture

By Catherine Offord | January 1, 2018

Researchers are beginning to tease apart the mechanisms underlying differences in how males and females respond to powerful painkillers.

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image: What Bat Quarrels Tell Us About Vocal Learning

What Bat Quarrels Tell Us About Vocal Learning

By Katarina Zimmer | January 1, 2018

New research shows humans aren’t that different from our winged cousins.

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Aggressive little marine predators, mantis shrimps possess a mushroom body that appears identical to the one found in insects.

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The whip spider senses the world in weird and wonderful ways.

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image: Robotic Birds Help Decode Avian Deception

Robotic Birds Help Decode Avian Deception

By Shawna Williams | December 1, 2017

Magpie-larks trick rivals with solo “duets” to defend territory.

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image: An Eye Scan for Alzheimer’s Disease?

An Eye Scan for Alzheimer’s Disease?

By Shawna Williams | November 1, 2017

Researchers aim for a routine screen to detect the neurodegenerative disease—decades before symptoms appear.

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