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Evolutionary biologists report they have analyzed a fossil of an extinct giant meat-eating bird -- which they say could be the largest known member of its kind -- providing new information about animal life in northern South America millions of years ago.

Windblown dust from the shrinking Salton Sea harms the respiratory health of children living nearby, triggering asthma, coughing, wheezing and disrupted sleep, USC research shows. The problem is likely to intensify in a hotter climate, with evaporation exposing more and more of the lake bed, or playa, leading to more...

A concerning increase in global rates of severe invasive infections becoming resistant to key antibiotics has a team of infectious disease researchers studying a recently emerged strain of bacteria called Streptococcus dysgalactiae subspecies equisimilis. These infections range in severity from strep throat to flesh-eating disease.

A new study involving 8,500 children from across the United States has revealed that a form of air pollution, largely the product of agricultural emissions, is linked to poor learning and memory performance in 9- and 10-year-olds. The specific pollutant, ammonium nitrate, is also implicated in Alzheimer's and dementia risk...

New research has found that, unlike birds, the evolution of bats' wings and legs is tightly coupled, which may have prevented them from filling as many ecological niches as birds.

Researchers developed citizen science platforms as a new data source to evaluate the effectiveness of the 742 protected areas for birds across Germany. This research shows that although these areas are well placed, their effectiveness varies greatly.