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image: Infographic: Macrophages Around the Body

Infographic: Macrophages Around the Body

By Claire Asher | October 1, 2017

In addition to circulating in the blood as immune sentinels, macrophages play specialized roles in different organs around the body.

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image: Macrophages Are the Ultimate Multitaskers

Macrophages Are the Ultimate Multitaskers

By Claire Asher | October 1, 2017

From guiding branching neurons in the developing brain to maintaining a healthy heartbeat, there seems to be no job that the immune cells can’t tackle.

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image: In Canada, Signs of Life Nearly 4 Billion Years Old

In Canada, Signs of Life Nearly 4 Billion Years Old

By Ashley P. Taylor | September 28, 2017

Embedded within 3.95-billion-year-old rock, scientists have found graphite with a carbon signature that indicates biological activity.

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image: Coastal Critters Make Epic Voyages After 2011 Tsunami

Coastal Critters Make Epic Voyages After 2011 Tsunami

By Ashley Yeager | September 28, 2017

Marine species survived rafting thousands of kilometers on debris swept into the water by the giant wave, scientists say.

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image: Image of the Day: Mitochondria, Live and in Color

Image of the Day: Mitochondria, Live and in Color

By The Scientist Staff | September 27, 2017

Mitochondria age differently depending upon whether they’re located in the liver, heart, or kidney, scientists find in flies and mice.

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image: How Poison Frogs Avoid Poisoning Themselves

How Poison Frogs Avoid Poisoning Themselves

By Abby Olena | September 21, 2017

Amphibians resist their own chemical defenses with amino acid modifications in the sequence for a target receptor.

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image: In-Depth Look at the Human Microbiome

In-Depth Look at the Human Microbiome

By Jef Akst | September 20, 2017

Hundreds of samples from microbes living in the gut, skin, mouth, and vagina add to the human microbiome “fingerprint.” 

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image: Second Chance for Lost Galapagos Tortoises?

Second Chance for Lost Galapagos Tortoises?

By Bob Grant | September 14, 2017

Researchers are trying to recreate an extinct species of the lumbering reptiles by breeding closely related species that contain traces of the lost lineage’s DNA.

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image: Infection During Pregnancy Tied to Autism in Mouse Model

Infection During Pregnancy Tied to Autism in Mouse Model

By Kerry Grens | September 13, 2017

Bacterial strains in mice’s gut microbiomes mediated their pups’ risk for developing abnormal behaviors.

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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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