SCIENCE IN THE NEWS DAILY
Animals Have Different Patterns of Rest
from the Boston Globe (Registration Required)
We spend a third of our lives doing it. We build special rooms for it, and we agonize over not getting enough of it. Yet despite all the time humans invest in sleep, scientists have still not been able to explain why we need it.
While an array of lab studies show that slumber-deprived people remember less, react more slowly, and even develop higher risks of heart disease and diabetes, the reasons sleep developed in the first place have remained murky—and some even argue that it may not be as useful as we think.
Several scientists are now trying an innovative approach: comparing the snoozing habits of different animals to better understand how sleep evolved over time.
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VIDEO: How Hair Ice Grows
In 2013, American Scientist featured an article on odd ice formations on plant stems, including these curling ribbons of ice. One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct... (click the link above to read more).
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