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Image of the Day
Infographic: Macrophages Around the Body
Claire Asher | Sep 30, 2017
In addition to circulating in the blood as immune sentinels, macrophages play specialized roles in different organs around the body.
Opinion: Toxic Time Bombs
Robert Martin | Sep 25, 2017
Decades of evidence point to the untoward health effects of endocrine disruptor exposures, yet little is being done to regulate the chemicals.
A Prosthetic Advantage?
Diana Kwon | Sep 1, 2017
Scientists are analyzing how factors such as the length and stiffness of artificial limbs affect performance in athletes with amputations.
Heart’s Backup Pacemaker Mechanisms Identified
Diana Kwon | Jul 28, 2017
The sinoatrial node is home to multiple pacemakers that keep the heart beating if the main one falters.
Anti-Preeclampsia Hormone Discovered
Ruth Williams | Jun 29, 2017
A small, placenta-produced peptide fixes the pregnancy-related condition in mice.
Mammalian Jaws Evolved to Chew Sideways
Catherine Offord | Jun 1, 2017
Parallel evolution in jaws and teeth helped early mammals diversify their diets.
Bone Marrow Isn’t the Only Source of Platelets
Ashley P. Taylor | Jun 1, 2017
Scientists have estimated that about half of murine platelet production occurs in the lungs.
Running on Empty
Bob Grant | Jun 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.
Plastic Pollutants Pervade Water and Land
Ee Ling Ng | Jun 1, 2017
Contamination of marine and terrestrial ecosystems by microplastics is putting individual organisms at risk.
Infographic: Plastics’ Effects
Ee Ling Ng | May 31, 2017
Lab studies suggest that plastic pollutants in the environment could have detrimental effects on animals’ physiology.