White mice in a clear plastic cage
Different Genes Influence Lifespan in Male and Female Mice
Researchers say there may be similar genes in humans whose effects on lifespan vary by sex.
Different Genes Influence Lifespan in Male and Female Mice
Different Genes Influence Lifespan in Male and Female Mice

Researchers say there may be similar genes in humans whose effects on lifespan vary by sex.

Researchers say there may be similar genes in humans whose effects on lifespan vary by sex.

News
A photo of King Charles III, then formally Prince of Wales, wearing a dark suit, shown from the shoulders up.
The Unscientific King: Charles III’s History Promoting Homeopathy
Sophie Fessl | Sep 29, 2022
King Charles III has a long history of promoting homeopathic or alternative medical treatments not supported by scientific evidence.
Vector image of black body with head surrounded by white clouds
Multiple Possible Causes of Long COVID Come into Focus
Natalia Mesa | Sep 28, 2022
Recent studies have lent support for a variety of hypotheses explaining the debilitating symptoms affecting millions of people after SARS-CoV-2 infection.  
Two agar plates superimposed on each other. One is empty while the other is growing multiple different cultured organisms, colored white, beige, and green.
Most Archaea and Bacteria are Nameless. SeqCode Could Change That
Dan Robitzski | Sep 27, 2022
The Scientist spoke with microbiologist William Whitman about a new system of nomenclature for prokaryotic organisms that can’t be cultured.
satellite view of Hurricane Ian in between Cuba and Florida's Gulf Coast
Researchers in Ian’s Path Brace for the Storm
Andy Carstens | Sep 27, 2022
With their laboratories prepared as well as possible for what’s now a Category 3 hurricane, all scientists in Florida can do now is wait.
A building behind trees
Ford Foundation Sunsets Diversity Fellowships
Andy Carstens | Sep 27, 2022
For more than 50 years, the program has served as a pipeline to get more scholars of color into academic institutions.
white mouse sitting down
Drug Spurs Neuron Growth in Mice with Chronic Spinal Cord Injury
Natalia Mesa | Sep 27, 2022
A protein duo increases transcription of growth-related genes to enhance axon regeneration and boost plasticity, a study finds—but fails to improve mobility.
A germinal center inside a lymph node
Slow Vaccine Delivery May Maximize Immune Response
Alejandra Manjarrez | Sep 23, 2022
A vaccine strategy involving formulation changes, an initial escalating dose, and a longer wait for booster immunization results in more-effective antibody production against HIV in rhesus monkeys, a study finds.
A mouse brain showing activated neurons (white) in the brainstem 3 hours after LPS injection.
Research Pinpoints the Neurons Behind Feeling Sick
James M. Gaines | Sep 23, 2022
Specific neurons in the brainstem control sickness behaviors not directly caused by a pathogen, such as tiredness and lack of appetite, a mouse study finds.
A white deer mouse on sand surrounded by plants
Are We In the Midst of a Silent Mass Extinction?
Andy Carstens | Sep 22, 2022
A new modeling technique aims to help scientists and policymakers detect declines in genetic diversity based on habitat loss.
satellite image of Hurricane Fiona
Researchers Assess Setbacks After Hurricane Fiona
Katherine Irving | Sep 21, 2022
Some areas of Puerto Rico have been hit by flooding and high winds, but long power outages are also impeding scientists’ work.
Illustration of blue and gray amino acids loosely forming protein
Fungal Cold Adaptation Linked to Protein Structure Changes: Study
Patience Asanga | Sep 20, 2022
Environmental pressure seems to spawn changes in the intrinsically disordered regions of enzymes in polar yeasts, allowing them to adapt to extreme cold.
group of people standing on rock outcropping with ocean in distance
Repeated El Niño Events Could Spark Big Ecological Shifts
Margaret Osborne | Sep 19, 2022
Five major El Niño events per century could lead to fewer fishes that thrive in cold water and more terrestrial birds in eastern coastal ecosystems.
Illustration of pink and blue DNA molecules.
Historic Adaptations May Now Make Us Susceptible to Disease
Dan Robitzski | Sep 16, 2022
Researchers made the find using an algorithm that purportedly distinguishes between mutations that were selected for and those that came along for the ride by coincidence, a feat that has long eluded scientists.
Histology of mouse lungs using purple and green staining on a white background. Left: a healthy lung. Right: a fibrotic lung.<br><br>
Immunotherapy Treats Fibrosis in Mice
Alejandra Manjarrez | Sep 15, 2022
Researchers report that vaccination against proteins found on profibrotic cells reduced liver and lung fibrosis in laboratory rodents.
Drawing of fish with internal anatomy.
Researchers Visualize Heart From 380-Million-Year-Old Fish
Natalia Mesa | Sep 15, 2022
A team of researchers in Australia have imaged fossilized soft organs of early jawed vertebrates for the first time, finding that our ancient fish ancestors’ hearts, livers, and stomachs are strikingly similar to ours.
artistic representation of jumping gene
Jumping Genes Can Cause Movement Disorder: Study
Sophie Fessl | Sep 13, 2022
Mice with overactive LINE-1 retrotransposons in their brains exhibit movement difficulties, suggesting the genetic elements may play a role in ataxia in humans. 
illustration of blue cells with exosomes budding off of them and floating away
Nanoparticles Spur Mouse Immune System to Attack Cancer
Shafaq Zia | Sep 13, 2022
A study finds that engineered exosomes are effective in mice, but their potential use in humans raises safety questions.  
Illustration of a human and Neanderthal skull side by side.
Mutation Linked to Difference Between Human and Neanderthal Brains
Dan Robitzski | Sep 9, 2022
A single amino acid substitution in a protein causes increased neuron production in the frontal lobes of humans compared to Neanderthals—a tiny difference that could have given our species a cognitive edge, researchers say.
Adipose tissue under the microscope appearing as red blobs on a white background
Mouse Brains Appear to Eavesdrop on Their Fat
Alejandra Manjarrez | Sep 9, 2022
For the first time, a team visualizes sensory nerves projecting into adipose tissue in mice and finds these neuronal cells may counteract the local effects of the sympathetic nervous system.