A 'quantum material' that mimics a shark's ability to detect the minute electric fields of small prey has been shown to perform well in ocean-like conditions, with potential applications from defense to marine biology.
Researchers from Arizona State University and the Norwegian University of Life Sciences have discovered that antibiotic-resistant genes are spread in honey bee gut bacteria so that all strains of bacteria survive, rather than just one gut bacterium acquiring resistance and outcompeting others.
Societies can achieve environmental sustainability by nurturing cooperation, according to research at the University of Maine. The new theory on sustainability was recently published in a special issue of the journal Sustainability Science.
Parents' choices about when to breed have lifelong consequences for offspring. For the sixbar wrasse, the flexibility of babies to delay their critical swim towards adulthood frees adults to spawn more often, ecologists report in ESA's journal Ecology. A delay of a few days could have life long consequences. In a species that can choose its sex, consequences could include which fish grows large enough to compete as a male and produce the most offspring.
Lakes suffering from harmful algal blooms may not respond to reduced, or even discontinued, artificial nitrogen loading. Many blue-green algae responsible for algal blooms can fix atmospheric nitrogen dissolved in the water, and therefore water stewards should focus their efforts on removing phosphorus from lakes to combat algal blooms.
In 2017, researchers at the California Academy of Sciences added 85 new plant and animal species to the family tree, enriching our understanding of Earth's complex web of life and strengthening our ability to make informed conservation decisions. The new species include 16 flowering plants, one elephant-shrew, 10 sharks, 22 fish, three scorpions, seven ants, 13 nudibranchs, seven spiders, three wasps, one fossil sand dollar, one deepwater coral, and one lizard.
Genetic barcodes are used to quantify crucial populations in a coral reef ecosystem.
The maximum daily level for magnesium in food supplements should not exceed 250 milligrams (mg). This is the recommendation of the German Federal Institute for Risk Assessment (BfR), taking into account new data.
Recognizing that many large dams are here to stay, a University of Washington team is investigating an emerging solution to help achieve freshwater conservation goals by re-envisioning the ways in which water is released by dams.
Antimicrobial compounds added to preserve food during storage are believed to be benign and non-toxic to the consumer, but there is 'a critical scientific gap in understanding the potential interactions' they may have with the hundreds of species of microbes in our intestines, say David Sela, a nutritional microbiologist at the University of Massachusetts Amherst, and colleagues.