blue-gloved hands injecting mouse with syringe
Sex of Researcher Influences Ketamine’s Effects in Mice: Study
The findings likely have implications for animal research far beyond the study of antidepressants.
Sex of Researcher Influences Ketamine’s Effects in Mice: Study
Sex of Researcher Influences Ketamine’s Effects in Mice: Study

The findings likely have implications for animal research far beyond the study of antidepressants.

The findings likely have implications for animal research far beyond the study of antidepressants.

smell
Close-up of a mosquito antenna with hair-like protrusions and fluorescently labeled glomeruli as green circles on the shaft
The Neuroscience Behind Why Mosquitoes Always Find You
Sophie Fessl | Aug 18, 2022
Neurons in mosquito antennae can express more than one olfactory receptor at a time, a redundancy that likely ensures they don’t lose a potential host’s scent.
Sleeping mice in chambers with mosquitoes behind them on a mesh
Mosquitoes Drawn to Hosts Infected by Dengue, Zika
Patience Asanga | Jun 30, 2022
Flavivirus infections alter the skin microbiome of mice to increase the production of a sweet-smelling compound that attracts the viruses’ insect vectors, a study finds.
The Scientist Speaks Podcast - Episode 12
The Scientist Creative Services Team
Decoding Smell: Demystifying Human Disease and Behavior
Two women in athletic clothing smiling at each other.
Study: People “Click” Better When Their Body Odor Matches
Dan Robitzski | Jun 24, 2022
Pairs of same-sex friends who reported strong connections when they first met had similar body odors, and body odor similarity predicted whether two strangers would hit it off.
close-up of an Aedes aegypti mosquito on human skin
Researchers Discover What Attracts Mosquitoes to Humans
Sophie Fessl | May 11, 2022
A brain area of Aedes aegypti responds specifically to components of human sebum, a study finds.
Photograph of a hummingbird
Even the Tiniest of Birds Use Smell in Some Situations
Jef Akst | Jan 4, 2022
Once considered anosmic, birds are now widely recognized as using olfactory cues to aid in a wide range of behaviors.
Cute sleeping newborn baby child on mother hands stock photo
Exposure to Chemical from Babies Linked to Aggression
Chloe Tenn | Nov 22, 2021
A study finds that the odorless compound hexadecanal, or HEX, increases aggressive behavior in women but has a calming effect on men.
A close-up of a fruit fly head with antenna clearly visible in front of its red eyes
Bacterial Infections Disrupt Flies’ Sense of Smell
Abby Olena | Jul 21, 2021
The temporary loss of olfaction stops the flies from eating any more of whatever it is that made them sick.
dogs, olfaction, smell, prostate cancer, volatiles, diagnosis, disease, canine
Watch a Trained Pup Detect Prostate Cancer From a Urine Sample
Asher Jones | Feb 18, 2021
Good girl, Florin!
dogs, olfaction, smell, prostate cancer, volatiles, diagnosis, disease, canine
Dogs Are Teaching Machines to Sniff Out Cancer
Asher Jones | Feb 18, 2021
In a proof-of-concept study, researchers used dogs’ diagnoses of prostate cancer to inform a machine learning algorithm with the goal of one day detecting cancers with canine-level accuracy.
Researchers Make Mice Smell Odors that Aren’t Really There
Ruth Williams | Jun 18, 2020
Using optogenetics, scientists have simulated the sense of smell directly within the mouse brain to investigate the nature of olfactory perception.
Loss of Smell, Taste May Be Reliable Predictor of COVID-19: Study
Ashley Yeager | May 12, 2020
Data from a crowdsourcing smartphone app is helping to track the spread of the disease in real time and reveals the symptom as the number one indicator of infection.
Smells of Nature Lower Physiological Stress
Ashley Yeager | Jan 2, 2020
In a virtual reality experiment, participants recovered faster from a small electric shock when they could smell natural scents than when they could smell urban odors.
Smell May Be Possible Without Olfactory Bulbs
Jef Akst | Nov 6, 2019
A study identifies five women who have a functioning sense of smell despite an apparent lack of olfactory bulbs—the region of the brain that processes odors.
A section of a mouse piriform cortex, a layered structure important for smell processing
Image of the Day: Smell Circuits
Nicoletta Lanese | Jul 24, 2019
The brain wiring behind scent processing seems to scale across mammalian species.
olfaction sense of smell stem cell olfactory sensory neurons
Stem Cells Delivered to the Nose Restore Mice’s Ability to Smell
Kerry Grens | May 30, 2019
The introduced cells engrafted in the nose, became olfactory sensory neurons, and sent axons to the animals’ brains.
Image of the Day: On the Nose
Carolyn Wilke | Apr 1, 2019
Lab-grown stem cells fill in for damaged tissue in the noses of mice.
a photograph of an older man's upper back
Chemicals on the Skin Could Enable Parkinson’s Detection
Shawna Williams | Mar 20, 2019
Researchers teamed up with a woman with a keen sense of smell to identify telling differences between healthy people and those with the neurodegenerative disease.
notebook
A Keen Sense of Smell Appears to Go Hand in Hand with Spatial Memory
Shawna Williams | Feb 1, 2019
Authors of a small study say the two abilities likely evolved in tandem.