When they weave their webs, spiders pull their silk threads. New simulations show stretching during spinning causes the protein chains within the fibers to align and the number of hydrogen bonds between those chains to increase. Both factors increase the silk fibers' overall strength and toughness. Insights could be applied...
New Technical Guidelines Pave the Way for Widespread Adoption of Methane-Reducing Feed Additives in Dairy and Livestock
In a special issue of the Journal of Dairy Science a global team of experts synthesizes decades of nutrition innovation on feed additives for methane reduction.
How’s the Weather on Mars?
In contrast to Earth, the Red Planet’s middle atmosphere appears driven by gravity waves.
What We Can Learn From How Flies Set the Thermostat
Differences between forest and desert flies could help explain how climate change impacts insects.
World’s oldest impact crater found, rewriting Earth’s ancient history
Researchers have discovered the world's oldest known meteorite impact crater, which could significantly redefine our understanding of the origins of life and how our planet was shaped. The team found evidence of a major meteorite impact 3.5 billion years ago.
Study raises the possibility of a country without butterflies
A sweeping study for the first time tallies butterfly data from more than 76,000 surveys across the continental United States. The results: Butterflies -- all of them -- are disappearing.
Scientists identify genes that make humans and Labradors more likely to become obese
Researchers have discovered genes linked to obesity in both Labradors and humans. They say the effects can be over-ridden with a strict diet and exercise regime.
How Aspirin Could Prevent Some Cancers From Spreading
Scientists have uncovered the mechanism behind how aspirin could reduce the metastasis of some cancers by stimulating the immune system, in a new study primarily funded by the Medical Research Council.
Study: The Ozone Hole Is Healing, Thanks to Global Reduction of CFCs
New results show with high statistical confidence that ozone recovery is going strong.
Scientists Discover Genes to Grow Bigger Tomatoes and Eggplants
Johns Hopkins scientists say the innovation could bring 'new fruits, foods, and flavors' to an expanded global agricultural marketplace.