Mice use almost completely distinct sets of neurons for their two different types of vocalizations—the squeaks they produce when in distress or fighting and the whistle-like ultrasonic vocalizations they use when communicating ...
Plants & Animals
2 hours ago
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Biologists, zoologists and psychologists have been trying to trace the origins of human language for centuries. One well-known theory, known as the social brain hypothesis, suggests that increasingly complex social lives ...
The summers of recent years have been hot, but not unusual from a meteorological perspective. According to researchers at Leipzig University, though, the next extreme summer would far exceed anything we have experienced so ...
Earth Sciences
1 hour ago
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Researchers at Karolinska Institutet and Stockholm University have developed a new tool that estimates a cell's biological age by analyzing its gene activity. In an article published in the journal Advanced Science, they ...
Cell & Microbiology
1 hour ago
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1
A baby sits on the floor and reaches toward a red ball on the floor and grunts. The mother responds, "Do you see the ball?" She picks it up, holds it in front of the baby and says, "Do you want to hold the ball?" The baby ...
Social Sciences
2 hours ago
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4
Massive storms like Hurricane Katrina in 2005, which caused more than $100 billion in damage, were once considered lifetime events. Increasingly, however, they are becoming the norm: a direct result of climate change, which ...
Earth Sciences
2 hours ago
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1
The mantle, a rocky layer accounting for more than 80% of Earth's volume, circulates at rates of only a few centimeters per year. This circulation drives plate tectonics and influences major geological phenomena such as earthquakes ...
Earth Sciences
1 hour ago
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Readers of a certain age will remember a golden era of asteroid films, capped by two with very different endings. "Deep Impact" drove home the devastating consequences of letting a large piece of rock hit our planet, whereas ...
Astronomy
2 hours ago
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3
An air pollution monitoring network has provided one of the most detailed long-term views yet of the role of black carbon, or soot produced by fires, diesel vehicles and other combustion sources, in Ethiopia's capital, Addis ...
Environment
3 hours ago
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4
The threat that rising temperatures fueled by climate change pose to the health of older people has been dramatically underestimated, according to a U.S. modeling study published Tuesday.
Environment
6 hours ago
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