Proceedings of the National Academy of Sciences
Hourglass body shape is ideal for hula hooping, says study
Scientists explain the physics of hula hooping.
Today’s genetic code likely came after other codes that have since gone extinct
Study sheds light on origin of genetic code.
Evidence of rice beer dating back approximately 10,000 years at the Shangshan site
New insights into the origins of alcoholic beverage brewing in East Asia.
Cleaner water may pose risk to some Lake Erie fish species
Unforeseen water quality–fisheries tradeoffs are reduced to improve water quality.
Surprising biological mechanisms discovered underlying severe COVID-19
Severe COVID-19 has been considered an inflammatory “cytokine storm”.
Our human family tree evolved bigger brains much more rapidly than earlier species
Brains grew faster as humans evolved.
MIT engineers look to manta rays to design better water filters
The filter feeder's unique mechanism could potentially revolutionize the design of industrial water filters.
What lies beneath the bland surfaces of Uranus and Neptune?
Uranus and Neptune are unique but superficially bland ice giants in our solar system. Planetary scientists have devised two proposals for what lies beneath...
New model can be used to better understand coexistence in nature
Understanding the coexistence in nature.
Microbial production of the most toxic form of mercury
How microbes create the most toxic form of mercury.
New evidence suggests Earth was covered in ice more than 660 million years ago
Researchers at the University of Colorado, Boulder have uncovered strong evidence that supports Snowball Earth theory.
Aging reversed: A species of comb jelly can reverse its life cycle
Returning from adulthood to a larval stage.
Artificial cilia monitor internal biomarkers to detect airway diseases
A system of artificial cilia capable of monitoring mucus conditions in human airways to better detect infection.
Climate change increases sources of carbon and CO2 sinks
Landmark 20-year study of climate change impact on permafrost forests.
Bird-inspired rows of flaps can improve flight performance
Inspired by bird feathers called covert feathers, researchers at the University of Princeton have found that rows of flaps can enhance flight during maneuvers...
What impact did a meteorite the size of four Mount Everests have on Earth?
Giant impact had silver lining for life, according to new study.
Frog skin-inspired technology captures atmospheric water
This groundbreaking technology even pulls large amounts of water from the air in low humidity
The mystery of the ‘Dinky’ dinosaur’s unusually long stride solved
UMD paleontologist helped recreate the movements of a bird-sized raptor.
Thousands of lives could be saved by expanded access to weight-loss drugs
It needs to remove existing barriers that are hindering people's access to effective weight loss treatments.
New study reveals brain’s waste-clearance pathways for the first time
The study uses imaging in neurosurgery patients to show how the brain's glymphatic system clears waste.
Researchers witnessed the formation of tiny water bubbles in real-time
Watch water form out of thin air.
Critical crops’ alternative way to survive stressful, dry conditions
All C4 crops are critical for global food security.
Neck strain alters spine and muscles, leading to pain
Using smartphones and computers for long periods has led to a rise in neck pain, while neck muscle fatigue severely.
A rare form of cell division reproduces human mouth bacteria
One of the most diverse ecosystems on the planet is closer than you think—right inside your mouth.
An unexpected genetic mechanism influences butterfly wing evolution
Genomic dark matter solves butterfly evolutionary riddle.
Geophysicists find stores of liquid water on Mars
Presence of liquid water most probable explanation for data collected by Mars lander.
Study uncovers 16,000 years of climate history in tropical Andes
A new study that explores ancient temperatures and rainfall patterns in the tropical Andes of South America.
Greenland fossils reveal increased risk of sea-level catastrophe
The story of Greenland keeps getting greener and scarier.