Uncategorized
- Life
How plant ‘muscles’ fold up a mimosa leaf fast
A mimosa plant revs up tiny clumps of specially shaped cells that collapse its leaflets, though why isn’t clear.
- Humans
50 years ago, scientists debated when humans first set foot in North America
In 1973, archaeologists debated when people first arrived in the Americas. Mounting evidence suggests its much earlier than they thought.
- Animals
A newfound ‘croakless’ frog may communicate via touch
A newly discovered frog species in Tanzania joins a rare group of frogs that don’t croak or ribbit.
- Physics
Water is weird. A new type of ice could help us understand why
A newfound type of amorphous ice with a density close to liquid water could help scientists make sense of water’s quirks.
- Animals
Are your cats having fun or fighting? Here are some ways to tell
Certain behaviors indicate if your cats’ interaction is friendly, aggressive or something in between, a new study finds.
- Archaeology
Vikings brought animals to England as early as the year 873
A chemical analysis of cremated remains offers physical evidence of the arrival of Norse animals to England in the ninth century.
- Life
76 percent of well-known insects fall outside protected areas
Protected areas can provide safe havens for insects, but many existing ones fall short, a new study finds.
- Archaeology
Chemical residue reveals ancient Egyptians’ mummy-making mixtures
Chemical clues in embalming vessels reveal previously unknown ingredients used to prepare bodies for mummification and their far-flung origins.
- Science & Society
Here are 7 new science museums and exhibitions to visit in 2023
The Grand Egyptian Museum is slated to open, as well as new exhibitions dedicated to space travel, the Galápagos Islands and more.
- Health & Medicine
The deadly VEXAS syndrome is more common than doctors thought
The recently discovered inflammatory disease, VEXAS syndrome, typically occurs in men over 50, affecting nearly 1 in 4,000 in the United States.
- Physics
Muon scanning hints at mysteries within an ancient Chinese wall
Density fluctuations within the ancient rampart encircling the city of Xi’an could be defects or yet-to-be-discovered archaeological finds.
- Life
A new metric of extinction risk considers how cultures care for species
Conservation efforts should consider relationships between cultural groups and the species important to them, researchers argue.
