Search Results for: Butterflies
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1,028 results
1,028 results for: Butterflies
- Ecosystems
Males live longer with all-year mating
Male butterflies live longer in Madeira, where females are available year-round, than in Sweden, where females mature in one burst.
- Animals
No Tickling: Common caterpillars deploy defensive hair
The caterpillars of the European cabbage butterfly have a chemical defense system that scientists haven't documented before.
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From the June 11, 1932, issue
BUTTERFLIES, “WINGED JEWELS,” ARE GEMS AT START OF LIFE Butterflies have been called “winged jewels” so often that the conceit can hardly be considered poetic any longer. Yet the appropriateness of the old metaphor receives new confirmation when we look at the egg of a butterfly, which represents the humblest beginning of its career of […]
- Agriculture
Bt corn variety OK for black swallowtails
The first published field study of butterflies and genetically altered corn finds no harm to black swallowtail caterpillars from a common corn variety.
- Earth
Treaty is Imminent for Genetically Engineered Foods
The Republic of Palau–a 9-year-old confederation of some 300 Pacific islands–has fewer than 20,000 inhabitants and a land area only about 2.5 times the size of Washington, D.C. Yet this tiny nation southeast of the Philippines made big history last week when its government became the 50th to ratify the United Nations’ Cartagena Protocol, a […]
- 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.
- Animals
Sniff . . . Pow! Wasps use chemicals to start ant brawls
Wasps sneak around in ant colonies thanks to chemicals that send the ants into a distracting frenzy of fighting among themselves.
- Earth
Greenhouse Gassed
Scientists are discovering that more carbon dioxide in the air could spell disaster for plants and the animals that love to eat them.
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Alarming Butterflies and Go-Getter Fish
Recent studies suggest that there may be more ways to create new species than Darwin imagined.
- Plants
Emergency Gardening
High-tech tissue culture is helping some ultrarare plants finally have sprouts of their own.
- Ecosystems
Cultivating Weeds
Some formerly mild-mannered plants turn into horticultural bullies when planted far outside their native range.
- Earth
Bt Corn Risk to Monarchs Is ‘Negligible’
A much-anticipated report states that the most commonly planted forms of genetically engineered Bt corn pose only a "negligible" risk to monarch butterfly populations.
