Search Results for: Butterflies
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1,040 results
1,040 results for: Butterflies
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How the Butterfly Gets Its Spots
The spots on a butterfly wing turn out to be unusually good model systems for a range of disciplines from genetics to behavioral ecology, offering biologists a chance to paint the really big picture of how evolution works.
- Ecosystems
Cultivating Weeds
Some formerly mild-mannered plants turn into horticultural bullies when planted far outside their native range.
- Plants
Emergency Gardening
High-tech tissue culture is helping some ultrarare plants finally have sprouts of their own.
- Earth
When Genes Escape
The focus of the debate over transgenic crops has changed from whether genes will escape to what difference it will make when they do.
- Health & Medicine
All Roads Lead to RUNX
Genetic mutations that predispose some people to the autoimmune diseases lupus, psoriasis, and rheumatoid arthritis appear to have a common molecular feature: They derail the work of a protein, called RUNX1, that regulates how active certain genes are.
- Tech
Reinventing the Yo-Yo
No longer simple toys, today's pricey yo-yos sport high-tech features—such as ball bearing transaxles and precision string-snagging mechanisms—that permit dazzling new styles and complex tricks.
- Animals
Thoroughly Modern Migrants
Butterflies and moths are causing scientists to devise a broader definition of migration and this has raised some old questions in new ways.
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DNA Bar Codes
Scientists are using a small piece of DNA as a molecular bar code, a unique identifier to separate organisms into species.
- Anthropology
Remnants of the Past
Sophisticated analyses suggest that some prehistoric peoples were highly skilled weavers.
- Tech
Matrix Realized
Devices called brain-computer interfaces could give paralyzed patients the ability to flex mechanical limbs, steer a motorized wheelchair, or operate robots through sheer brainpower.
