Scientist Leona Zacharias was a rare woman. She graduated from Barnard College in 1927 with a bachelor’s degree in biology, followed by a Ph.D. from Columbia University. But throughout her career, she labored behind men with loftier titles who...
To stay cool in searing temperatures, the prickly echidna, an egg-laying mammal that lives Down Under, employs a somewhat unusual trick: It blows snot bubbles to keep its nose wet, a new study finds. "Early lab studies suggested that echidnas...
Spiral galaxies represent one of the most spectacular features in our universe. Among them, spiral galaxies in the distant universe contain significant information about their origin and evolution. However, we have had a limited understanding of these galaxies due...
People who experience generalized anxiety disorder (GAD) exhibit excessive concern about multiple events or activities most days of the week. While it is not unusual for people to experience some stress as they go about their daily lives, GAD...
Science has long known that people living in what is now Siberia once walked (and later paddled boats) across the Bering Strait into North America. But new evidence now shows that these early migrations weren’t one-way trips: in a...
The fossilization process is an unrelenting slog of decay, compression and erosion that can take millions of years and favors the preservation of tough material such as bones, teeth and shells. But with a little bit of sticky tree...
A good night's sleep is vital for optimal health. Not getting enough shut-eye can affect a person's mood and concentration the next day and it's been linked to a greater risk of chronic conditions, according to the National Heart,...
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