The research was part of the thesis of PhD student Hanna Nyborg Støstad, investigating the peculiar spiral shape of songbird sperm. Støstad compared sperm cells of 36 bird species, from house sparrows to tree swallows, and found that species whose sperm had a particularly distinct spiral or corkscrew shape also had sperm with high average swimming speed. However, those species also tended to have high rates of abnormal or damaged sperm.
For the first time scientists have found an organism that can produce chlorophyll but does not engage in photosynthesis.
When Susannah Lerman talked with fellow researchers and friends about her study of the effects of less frequent lawn mowing to improve habitat for native bees, the response she heard most had nothing to do with bees. "The first thing people said was that letting the grass get longer would invite ticks," said Lerman, a research ecologist with the USDA Forest Service's Northern Research Station. "It was clear that before we could make the case for promoting lawns as bee habitat, we had to understand the tick risk."
For years, scientists have assumed that when top predators are reintroduced to an ecosystem, the effects are predictable: The ecosystem will return to how it was before the predators were wiped out.
Until recently, five ebolavirus species were known, with three of these - Bundibugyo, Sudan and Zaire ebolaviruses - associated with large human outbreaks. The latter is responsible for the devastating 2013-16 outbreak in West Africa and the ongoing outbreak in the Democratic Republic of Congo.
CORVALLIS, Ore. - A groundbreaking two-year study in southern Oregon found greater abundance and diversity of wild bees in areas that experienced moderate and severe forest fires compared to areas with low-severity fires.
It's not fun when a fungus contaminates crops. Safe native fungi, however, show promise in the fight against toxic fungal contamination.
Dogs that receive omega-3 fatty acid supplements or have hypothyroidism may be less likely to develop T-zone lymphoma (TZL). Those are two findings from Morris Animal Foundation-funded researchers at Colorado State University, who studied associations of environment and health history of the disease among golden retrievers. They published their results in the Journal of Veterinary Internal Medicine.
In a Nature Communications paper published today, an international research team including UConn's Bernard Goffinet used DNA-sequencing technology to reconstruct the family tree of mosses, which go back at least 400 million years.
A team of scientists led by University of Missouri maize geneticist Paula McSteen has identified a gene essential for forming the ears in corn.
Researchers found high concentrations of mercury, arsenic, and lead, in blood samples obtained from Great white sharks in South Africa. The samples had levels that would be considered toxic to many animals. However, the study found no apparent negative consequences of these heavy metals on several health parameters measured in the sharks, including body condition, total leukocytes, and granulocyte to lymphocyte ratios, suggesting no adverse effects on their immune system.
New finding by NYU Abu Dhabi researchers published in the journal Scientific Reports
Findings will help resource managers with difficult conservation decisions
Research on coffee farm habitats can help both fowl and farmers