Each spring, millions of monarch butterflies leave their overwintering sites in the Sierra Madre mountains of central Mexico and begin their annual migration north across the United States.
Ecology
Apr 11, 2022
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49
One popular example of chaotic behavior is the butterfly effect—a butterfly may flap its wings in somewhere in the Atlantic Ocean and cause a tornado in Colorado. This remarkable fable illustrates how the extreme sensitivity ...
Condensed Matter
Apr 5, 2022
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139
Researchers have identified a species of milkweed that holds promise for planting on roadsides to improve conservation habitat for migrating monarch butterflies.
Plants & Animals
Feb 22, 2022
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10
When we think of climate change, we often imagine how a warmer world will impact species, but a new study highlights the importance of changes in precipitation. The finding suggests that paying attention to the environmental ...
Plants & Animals
Feb 7, 2022
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63
Chaos, often popularized as the 'butterfly effect', describes the irregular phenomenon of deterministic systems. Based on the unique features of sensitivity to initial conditions and unpredictability of future evolutions, ...
Optics & Photonics
Jan 4, 2022
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6
"Some say the world will end in fire," wrote Robert Frost a century ago. The poet described one popular take on the world's end before shifting to its apocalyptic opposite, writing, "some say in ice."
Environment
Dec 16, 2021
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472
With over a million known species, insects are by far the most diverse group of organisms on Earth, with conservative estimates indicating there are millions more waiting to be found. But extinction due to human pressures ...
Plants & Animals
Dec 16, 2021
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966
Monarch butterflies are famous for their annual long-distance migration, which takes them over several thousand kilometers from the north of the USA to their overwintering habitat in central Mexico. On their migration, the ...
Plants & Animals
Nov 24, 2021
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124
Monarch butterflies and their close relatives thrive on poisonous milkweed, thanks to genetic mutations that block the effects of the plant's toxins while allowing the poisons to accumulate in the caterpillar or adult insects ...
Plants & Animals
Nov 22, 2021
1
293
Like a witness to a violent death, NASA's Hubble Space Telescope recently gave astronomers an unprecedented, comprehensive view of the first moments of a star's cataclysmic demise. Hubble's data, combined with other observations ...
Astronomy
Oct 21, 2021
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481
