All Stories by McKenzie Prillaman
- Health & Medicine
The U.S. COVID-19 public health emergency is ending. What does that mean?
The declaration, made early in the pandemic, made tests, vaccines and treatments free to all. On May 11, the proclamation ends.
- Health & Medicine
Ultrasound allows a chemotherapy drug to enter the human brain
An early-stage clinical trial demonstrates a technique for getting a powerful chemotherapy drug past the usually impenetrable blood-brain barrier.
- Health & Medicine
Pets and people bonded during the pandemic. But owners were still stressed and lonely
People grew closer to their pets during the first two years of COVID. But pet ownership didn’t reduce stress or loneliness, survey data show.
- Psychology
Native language might shape musical ability
People who speak tonal languages, where pitch alters meaning, are better at perceiving melody but worse at rhythm than speakers of nontonal languages.
- Archaeology
A prehistoric method for tailoring clothes may be written in bone
A punctured bone fragment was probably a leatherwork punch board. Perforated leather sewn together may have been seams in clothing.
- Science & Society
The Smithsonian’s ‘Lights Out’ inspires visitors to save the fading night sky
The exhibition examines how light pollution harms astronomy, ecosystems and human cultures. But it also offers hope.
- Animals
Invasive yellow crazy ants create male ‘chimeras’ to reproduce
Yellow crazy ants are first known species where chimerism is required in males: Each of their cells holds DNA from just one of two genetic lineages.
- Animals
These transparent fish turn rainbow with white light. Now, we know why
Repeated structures in the ghost catfish’s muscles separate white light that passes through their bodies into different wavelengths.
- Anthropology
Two scientists’ trek showed how people of Chaco Canyon may have hauled logs
By carrying a log with the aid of head straps called tumplines, the duo demoed how people may have hauled timbers to Chaco about 1,000 years ago.
- Neuroscience
Scientists have mapped an insect brain in greater detail than ever before
Researchers have built a nerve cell “connectivity map” of a larval fruit fly brain. It’s the most complex whole brain wiring diagram yet made.
- Archaeology
The Yamnaya may have been the world’s earliest known horseback riders
5,000-year-old Yamnaya skeletons show physical signs of horseback riding, hinting that they may be the earliest known humans to do so.
- Health & Medicine
Medicated eye drops may delay nearsightedness in children
Myopia, or nearsightedness, is a growing global health threat. But a Hong Kong study found that medicated eye drops may delay its onset in children.
