Search Results for: Butterflies
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1,040 results
1,040 results for: Butterflies
- Life
Slow sperm may fail at crashing ‘gates’ on their way to an egg
A new study describes how sperm navigate narrow straits in the reproductive tract’s obstacle course to reach an egg.
- Animals
Green darner dragonflies migrate a bit like monarch butterflies
Some dragonflies do a north-south annual migration that takes at least three generations.
- Astronomy
Known as the ‘mother of Hubble,’ astronomer Nancy Roman dies at 93
Astronomer Nancy Roman, the “mother of Hubble,” has died.
- Quantum Physics
Douglas Stanford probes the chaos inside black holes
Theoretical physicist Douglas Stanford is linking some of the most massive objects known to the quantum realm.
- Science & Society
Before it burned, Brazil’s National Museum gave much to science
When Brazil’s National Museum went up in flames, so did the hard work of the researchers who work there.
- Climate
Bloodflowers’ risk to monarchs could multiply as climate changes
High atmospheric carbon dioxide levels can weaken the medicinal value of a milkweed that caterpillars eat, and high temperatures may make the plant toxic.
- Animals
Each year painted lady butterflies cross the Sahara — and then go back again
Painted ladies migrate the farthest of any butterfly.
- Astronomy
New ideas about how stars die help solve a decades-old mystery
New ideas about stellar evolution help explain why astronomers see so many bright planetary nebulae where they ought not be.
- Paleontology
Colorful moth wings date back to the dinosaur era
Microscopic structures that scatter light to give color to the wings of modern butterflies and moths date back almost 200 million years.
- Animals
Flying insects tell tales of long-distance migrations
Researchers are asking big questions about animal movements and pest control by tracking tiny insects in flight.
- Animals
Fighting like an animal doesn’t always mean a duel to the death
Conflict resolution within species isn’t always deadly and often involves cost-benefit analyses.
- Animals
Dino-bird had wings made for flapping, not just gliding
Archaeopteryx fossils suggest the dino-birds were capable of flapping their wings in flight.
