Single filament of a bacterium
The Naked Eye Can Spy This Enormous Bacterium
At about 2 centimeters in length, Thiomargarita magnifica tests scientists’ notions of how large microbes can grow.
The Naked Eye Can Spy This Enormous Bacterium
The Naked Eye Can Spy This Enormous Bacterium

At about 2 centimeters in length, Thiomargarita magnifica tests scientists’ notions of how large microbes can grow.

At about 2 centimeters in length, Thiomargarita magnifica tests scientists’ notions of how large microbes can grow.

ABOVE: Jean-Marie Volland
News & Opinion
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.
Aerial view of crowd connected by lines
Monkeypox: What We Know (and What We Don’t)
Andy Carstens | Jun 24, 2022
The longer and farther the virus spreads, the more likely it could become endemic in new areas, says UCLA epidemiologist Anne Rimoin.
Artist’s rendition of metastatic cancer cells with yellow nuclei and green cell bodies extending into blue tendrils.
While the Body Rests, Breast Cancer Spreads More Aggressively
Alejandra Manjarrez | Jun 23, 2022
More cancer cells are shed from primary tumors when individuals are asleep than when they’re awake, according to observations in small cohorts of breast cancer patients and mouse models.
Close-up of the head of the Aldabra Giant Tortoise. Her face is dirty from eating grass on a sandy beach.
How Slow Can You Go?
Hannah Thomasy | Jun 23, 2022
Two studies show negligible rates of aging in some types of turtles and other cold-blooded creatures, but that doesn’t mean they’re immortal.
a black abalone on a rock
Genome Spotlight: Black Abalone (Haliotis cracherodii)
Christie Wilcox | Jun 23, 2022
The researchers who constructed the first reference genome for this critically endangered mollusk say it will assist restoration efforts.
portrait photo of Arati Prabhakar
Biden Nominates New Science Advisor
Andy Carstens | Jun 22, 2022
If the Senate confirms her appointment, Arati Prabhakar will become the first woman, person of color, and immigrant to head the Office of Science and Technology Policy.
Ctrl+C and Ctrl+V computer keyboard button with cable isolated on white background
Opinion: The Reproductive Technology Advances No One Asked For
John D. Loike, Alan Kadish | Jun 22, 2022
Cloning and parthenogenesis of humans wouldn’t align with bioethical principles.
Words for Nerds on the screen of a mobile device
Announcing Words for Nerds, a New Game from The Scientist
The Scientist Staff | Jun 22, 2022
Like playing Wordle? You’ll love Words for Nerds, which centers on scientific jargon and will challenge your brain every day.
Greyhound scratches body from fleas on a green lawn outdoors in a park on a sunny day
New Mechanism for Touch-Evoked Itch Found in Mice
Natalia Mesa | Jun 22, 2022
A previously overlooked protein is important to this type of itch, an insight that could aid the development of new treatments.
Artist’s rendering of aquamarine T cells in front of a blue and green background.
Study Links Stress to a Faster-Aging Immune System
Margaret Osborne | Jun 21, 2022
Health data from 5,744 adults over the age of 50 reveals an association between stressors such as discrimination and a relatively small proportion of younger infection-fighting immune cells.
beagle
Research Beagle Facility Ordered to Clean Up, Halt Breeding
Andy Carstens | Jun 20, 2022
A federal judge ruled that Envigo can finalize the sales for 500 of its remaining 3,000 research dogs, but it needs to improve the safety and health of the animals remaining at its facilities while federal officials decide their fate.
mouse nose peeking out from between two yellow objects
Not-so-Mellow Yellow: Pregnant Mice’s Urine Stresses Out Males
Sophie Fessl | Jun 20, 2022
An odorant found in the pee of pregnant mice—and in bananas—induces stress but also relieves pain in male mice, a study shows.
Child getting a bandaid put on arm by doctor.
FDA Green Lights COVID-19 Vaccines for Kids Under 5
Andy Carstens | Jun 17, 2022
Moderna and Pfizer-BioNTech shots could be given to the youngest kids as early as June 21.
hourglass with coronaviruses instead of sand
Omicron Half as Likely to Lead to Long COVID as Delta: Study
Christie Wilcox | Jun 17, 2022
People who were vaccinated at least six months prior to infection had the lowest risk of lasting symptoms in a UK study.
A line of people wearing monkey masks and holding signs stand along a street
Opinion: Time to Take Animal Rights Harassment More Seriously
Jim Newman | Jun 17, 2022
Two recent court rulings shine a light on the disturbing tactics used by some activists to target biomedical researchers who study animals.
Micrograph of a beta cell, where insulin granules are shown as blue small balls, mitochondria are colored green, and a fraction of the cell nucleus appears in purple.
Diabetes Linked to Malnutrition Is Metabolically Unique: Study
Alejandra Manjarrez | Jun 16, 2022
Results from a small sample of Indian males suggest that lean individuals with a history of malnutrition suffer from a distinct type of diabetes characterized by a defect in insulin secretion.
Paolo Macchiarini stands at a podium with a microphone
Paolo Macchiarini Found Guilty for Botched Surgery
Amanda Heidt | Jun 16, 2022
The former thoracic surgeon was acquitted on two counts of intentional assault but convicted on a single count of felony bodily injury for a series of fatal procedures in the early 2010s.
stubbed-out cigarette with smoke rising from ashes
Damage to Brain Network Curbs Urge to Smoke
Shawna Williams | Jun 16, 2022
A study finds that injuries to certain areas of the brain were associated with quitting smoking more quickly, easily, and with no cravings.
A small, brown mouse runs on a narrow, miniature treadmill
How Exercise Helps Mice Fight Pancreatic Cancer
Dan Robitzski | Jun 15, 2022
A study reveals a molecular pathway linking exercise to an amped-up immune response to pancreatic cancer and greater responsiveness to treatment.