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Devoted runners suffer from a surprisingly high rate of injury. One reason for these injuries is that runners endure many shocks from the impact, and these cause vibrations that travel from the foot throughout the entire body. A researcher who focuses on acoustics and biomechanics, studied these repetitive shocks and investigated how runners adapt their running patterns.
The blue whale is the largest animal that has ever lived. And yet they feed almost exclusively on tiny crustaceans known as krill. The secret is in the baleen, a complex filter-feeding system that allows the enormous whales to strain huge volumes of saltwater, leaving only krill and other small organisms behind. Now, researchers who have described an extinct relative of baleen whales offer new insight into how baleen first evolved.
Researchers who have analyzed the Y chromosomes of more than 50 horses representing 21 breeds have found that the paternal lines of nearly all modern horses trace to stallions brought to Europe from the Orient over the last 700 years. The findings reveal the overwhelming influence of breeding schemes driven by strong selection on males.
Defective viruses incorporated into grass genomes may adapt to form partnerships with other genome-incorporated viruses in order to complete their life cycle, according to a new study. The findings suggest that partner viruses evolve in concert, enabling them to maintain their relationship over time.
Unmitigated climate change will make the United States poorer and more unequal, according to a new study. The poorest third of counties could sustain economic damages costing as much as 20 percent of their income if warming proceeds unabated.
Worker and queen honeybees exposed to field realistic levels of neonicotinoids die sooner, reducing the health of the entire colony, biologists have found. The researchers were also surprised to find that the neonicotinoid contaminated pollen collected by the honeybees came not from crops grown from neonicotinoid treated seeds, but plants growing in areas adjacent to those crops. This is season-long, field realistic research with typical exposure.
The world's open grasslands and the beneficial fires that sustain them have shrunk rapidly over the past two decades, due to a massive increase in agriculture, according to a new study.
Researchers have generated near-atomic resolution images of key steps in CRISPR-Cas3 function. The findings reveal multiple layers of error detection that prevent unintended genomic damage. Structural understanding informs efforts to improve the accuracy of CRISPR systems for gene editing and to reduce off-target effects.
Could cellulosic biofuels -- or liquid energy derived from grasses and wood -- become a green fuel of the future, providing an environmentally sustainable way of meeting energy needs? In a new article, researchers say yes, but with a few important caveats.
Methicillin-resistant Staphylococcus aureus (MRSA) bacteria are resistant to multiple antibiotics and commonly cause skin infections that can lead to serious or life-threatening infection in other parts of the body. New research found that two common, inexpensive antimicrobials can help heal MRSA skin abscesses. The findings suggest that current treatment options for MRSA still have a role, even as scientists continue to search for new antimicrobial products.