Sparrow, developmental biology, evolution
Image of the Day: Fragile Brain
Image of the Day: Fragile Brain
The Scientist Staff | Oct 3, 2017
In Fragile X syndrome—a genetic mishap that results in cognitive delays—the lack of a translation-repressing protein leads to the rampant accumulation of other proteins in the mouse brain.
Do Pathogens Gain Virulence as Hosts Become More Resistant?
Do Pathogens Gain Virulence as Hosts Become More Resistant?
Andrew F. Read and Peter J. Kerr | Oct 1, 2017
Emerging infections provide clues about how pathogens might evolve when farm animals are protected from infection.
Macrophages Are the Ultimate Multitaskers
Macrophages Are the Ultimate Multitaskers
Claire Asher | Oct 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.
Infographic: Evolving Virulence
Infographic: Evolving Virulence
Andrew F. Read and Peter J. Kerr | Sep 30, 2017
Tracking the myxoma virus in the wild rabbit populations of Australia has yielded insight into how pathogens and their hosts evolve.
Infographic: Macrophages Around the Body
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.
In Canada, Signs of Life Nearly 4 Billion Years Old
In Canada, Signs of Life Nearly 4 Billion Years Old
Ashley P. Taylor | Sep 28, 2017
Embedded within 3.95-billion-year-old rock, scientists have found graphite with a carbon signature that indicates biological activity.
Coastal Critters Make Epic Voyages After 2011 Tsunami
Coastal Critters Make Epic Voyages After 2011 Tsunami
Ashley Yeager | Sep 28, 2017
Marine species survived rafting thousands of kilometers on debris swept into the water by the giant wave, scientists say.
Water Level in a Cell Can Determine Its Fate
Water Level in a Cell Can Determine Its Fate
Kerry Grens | Sep 27, 2017
Adding or removing water changes how stem cells differentiate.
How Poison Frogs Avoid Poisoning Themselves
How Poison Frogs Avoid Poisoning Themselves
Abby Olena | Sep 21, 2017
Amphibians resist their own chemical defenses with amino acid modifications in the sequence for a target receptor.
CRISPR Used in Human Embryos to Probe Gene Function
CRISPR Used in Human Embryos to Probe Gene Function
Ashley P. Taylor | Sep 20, 2017
OCT4 is necessary for blastocyst formation in the human embryo, researchers report.