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image: Heart’s Backup Pacemaker Mechanisms Identified

Heart’s Backup Pacemaker Mechanisms Identified

By | 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 | June 29, 2017

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

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Research shows that human immunity develops much earlier than previously thought, but functions differently in adults.

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

Bone Marrow Isn’t the Only Source of Platelets

By | 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 | 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 | 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 | 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 | June 1, 2017

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

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The 19th century biologist’s drawings, tainted by scandal, helped bolster, then later dismiss, his biogenetic law.

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Time-lapse imaging shows the immune cells transferring chemical signals during pigment pattern formation in developing zebrafish.

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