A team of researchers led by the University of Colorado Boulder recently discovered the first prehistoric bronze artifact made from a cast ever found in Alaska, a small, buckle-like object found in an ancient Eskimo dwelling and which likely originated in East Asia.
When considering giving money to humanitarian crises people often donate in response to events that grab their immediate emotions, according to a recent study by CU-Boulder psychology professor Leaf Van Boven.
"The question we wanted to answer with our study is what is the impact of people's emotions on their decisions to make charitable donations," Van Boven said. "We demonstrated that people act on what is immediately emotionally arousing to them. In other words, they respond to what makes them upset in the here and now."
For the past six decades, archaeologists have documented dense populations of ancient Maya in Mexico and Central America—hundreds of people per square kilometer. Corn, beans and squash are well-known Mayan food staples, but they are sensitive to drought and require fertile soils, and thus would be insufficient to feed a large population. So what did the Maya eat?