Researchers have tested ancient DNA from corn found at archaeological sites in Arkansas, shedding new light on the dispersal of one of the world's most important food crops.
Building Green and Blue Spaces, Such as Parks, in New Communities is Crucial for Cleaner Air
Surrey's Global Centre for Clean Air Research (GCARE), working with 30 co-authors from seven countries, found that parks may be the most effective solution for reducing overall air pollution – cutting air pollution by 22% city-wide.
Chemical Structure’s Carbon Capture Ability Doubled by Oregon State University Research
Oregon State University scientists have found a way to more than double the uptake ability of a chemical structure that can be used for scrubbing carbon dioxide from factory flues.
‘Alaska’s Changing Environment’ — A New Report
The University of Alaska Fairbanks released a new report this week highlighting environmental changes and extremes that impact Alaskans and their livelihoods.
Eating high-processed foods impacts muscle quality, study finds
A diet high in ultra-processed foods is associated with higher amounts of fat stored inside thigh muscles, regardless of the amount of calories consumed or level of physical activity, according to a new study. Higher amounts of intramuscular fat in the thigh could also increase the risk for knee osteoarthritis.
Mammoth as key food source for ancient Americans
Scientists have uncovered the first direct evidence that ancient Americans relied primarily on mammoth and other large animals for food. Their research sheds new light on both the rapid expansion of humans throughout the Americas and the extinction of large ice age mammals.
Male African elephants develop distinct personality traits as they age
Male African elephants have distinct personality traits, but also adapt their behavior to suit the social context, according to a new study.
Massive asteroid impacts did not change Earth’s climate in the long term
Two massive asteroids hit Earth around 35.65 million years ago, but did not lead to any lasting changes in the Earth's climate, according to a new study.
Can plastic-eating bugs help with our microplastic problem?
Previous research found that insects can ingest and absorb pure, unrefined microplastics -- but only under unrealistic, food-scarce situations. Zoologists have now tested mealworms in a more realistic scenario, feeding them ground-up face masks -- a common plastic product -- mixed with bran, a tastier option. After 30 days, the...
20th century lead exposure damaged American mental health
Exposure to car exhaust from leaded gas during childhood altered the balance of mental health in the U.S. population, making generations of Americans more depressed, anxious and inattentive or hyperactive, according to researchers. They estimate that 151 million cases of psychiatric disorder over the past 75 years have resulted from...