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image: Heart’s Backup Pacemaker Mechanisms Identified

Heart’s Backup Pacemaker Mechanisms Identified

By Diana Kwon | July 28, 2017

The sinoatrial node is home to multiple pacemakers that keep the heart beating if the main one falters.

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image: Anti-Preeclampsia Hormone Discovered

Anti-Preeclampsia Hormone Discovered

By Ruth Williams | June 29, 2017

A small, placenta-produced peptide fixes the pregnancy-related condition in mice. 

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image: Bone Marrow Isn’t the Only Source of Platelets

Bone Marrow Isn’t the Only Source of Platelets

By Ashley P. Taylor | June 1, 2017

Scientists have estimated that about half of murine platelet production occurs in the lungs.

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image: Mammalian Jaws Evolved to Chew Sideways

Mammalian Jaws Evolved to Chew Sideways

By Catherine Offord | June 1, 2017

Parallel evolution in jaws and teeth helped early mammals diversify their diets.

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image: Running on Empty

Running on Empty

By Bob Grant | June 1, 2017

Regularly taking breaks from eating—for hours or days—can trigger changes both expected, such as in metabolic dynamics and inflammation, and surprising, as in immune system function and cancer progression.

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image: Infographic: Plastics’ Effects

Infographic: Plastics’ Effects

By Ee Ling Ng | June 1, 2017

Lab studies suggest that plastic pollutants in the environment could have detrimental effects on animals’ physiology.

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image: Plastic Pollutants Pervade Water and Land

Plastic Pollutants Pervade Water and Land

By Ee Ling Ng | June 1, 2017

Contamination of marine and terrestrial ecosystems by microplastics is putting individual organisms at risk.

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image: Tissue-Clearing Technique Works on Bone

Tissue-Clearing Technique Works on Bone

By Kerry Grens | April 26, 2017

CLARITY made mouse bones transparent while preserving fluorescent labels so researchers could visualize tagged osteoprogenitors.

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image: Sweet Trick, Hawkmoths

Sweet Trick, Hawkmoths

By Bob Grant | April 17, 2017

The fast-flying insects convert sugars from nectar into antioxidants, which can help heal the oxidative damage suffered by their hard-working muscles.

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image: Exercise-Induced Muscle Factor Promotes Memory

Exercise-Induced Muscle Factor Promotes Memory

By Ruth Williams | June 23, 2016

Running releases an enzyme that is associated with memory function in mice and humans.  

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