New Research In
Physical Sciences
Featured Portals
Articles by Topic
Biological Sciences
Featured Portals
Articles by Topic
Front Matter
Studies reveal the mechanisms behind tumor metastasis and how to stymie it. But primary tumors still get the lion’s share of researchers’ attention.
Image courtesy of Science Source/Phanie.
Both social and engineering factors must be further explored and scrutinized across the globe—as should notions of justice related to flooding impacts and responses.
Image courtesy of Shutterstock.com/Ekaterina Pokrovsky.
In the News
Researchers report biparental inheritance of mitochondrial DNA in 17 members of three unrelated multigeneration families, paving the way for insights into alternative mechanisms for the treatment of inherited mitochondrial diseases.
Image courtesy of Pixabay/PublicDomainPictures.
Researchers report a machine-learning approach to identify land plants at risk of extinction, suggesting that the approach can be used to guide policies aimed at allocating resources for biodiversity conservation.
Image courtesy of Abbie Zimmer (Ohio State University, Columbus, OH).
A study explores how cats groom fur using fine structures called papillae on the surface of the tongue and presents a biologically inspired hairbrush to remove allergens from cat fur and apply medications on cat skin.
Image courtesy of Candler Hobbs (Georgia Institute of Technology, Atlanta).
Sign up for Article Alerts
Science Sessions Podcasts
Alexis Noel and David Hu describe the unusual properties of a cat's tongue.
FEATURED Profile
PNAS Profile of NAS member and immunologist Akiko Iwasaki
