Feeling old for your age may get you to help strangers more
Researchers say feeling old for your age can make you feel more responsible towards others. They also say your “subjective age” can change.
Reusable jelly ‘ice cubes’ never melt
Plastic-free, jelly “ice cubes” could change how food is kept cold. They can be reused a dozen times and then thrown out in the trash or with yard waste.
At-home COVID-19 spit tests capture oral microbiome snapshot
COVID-19 spit tests that contain the right preservative can also help the study of microscopic organisms in the mouth. That could lead to new treatments.
‘Missing link’ ends debate about how ancient human relative got around
A two-million-year-old fossil vertebrae shows Australopithecus sediba used their upper limbs to climb like apes and their lower limbs to walk like humans.
School COVID-19 policies are a real mixed bag
An analysis of all 50 states’ school COVID-19 policies finds widespread discordance and variation, both among states and within them.
White neighborhoods have higher carbon emissions
More carbon emissions come from white neighborhoods than African American ones, research finds. Here are the factors at play.
Only this one kind of frog has legit teeth
Scientists weren’t sure if a rare frog species, Gastrotheca guentheri, had real teeth, so they zoomed in on some froglet jaws to find out.
Missing nature during COVID took a mental toll on young adults
Skipping out on time spent in parks and other forms of nature during COVID’s first year took a toll on the mental health of teens and young adults.
Little kids don’t believe girls like computer science and engineering
Kids as young as 6 develop ideas that girls aren’t interested in computer science and engineering. The stereotypes could add to the gap in STEM careers.
Super tiny lag adds to the awkwardness of Zoom
Even 30 to 70 milliseconds of delay on Zoom tax our brain and make conversations awkward, research shows.