The formation of mineral-associated organic matter (MAOM) is a key phenomenon that may explain the slow turnover rates of carbon in soil organic matter (SOM). Despite this, important details ...

The egg-laying monotremes have played a central role in our understanding of mammalian evolution, but their fossil record is poor and their evolutionary history is controversial. Living monotremes are ...

Flamingos feature one of the most sophisticated filter-feeding systems among birds, characterized by upside-down feeding, comb-like lamellae, and a piston-like tongue. However, the hydrodynamic ...

Main text Please take note of the following when preparing your manuscript for PNAS: Do not include statements of novelty or priority. Avoid laboratory jargon. Use correct chemical names. Specify ...

There is an urgent requirement to discover new antibiotics. One approach is to use natural products, which are small bioactive molecules that provide producing organisms with beneficial biological ...

This study establishes a causal link between information and communication technology (ICT) usage and workforce geographical diversity, offering insights into how technology shapes labor mobility and ...

Plants recognize pathogens as non-self using innate immune receptors. Receptors on the cell surface can recognize amino acid epitopes present in pathogen proteins. Despite many papers investigating ...

The citrullinome refers to the set of proteins in which arginine residues can be posttranslationally modified to the nonclassical amino acid citrulline by the peptidylarginine deiminase (PAD) enzymes ...

This study offers insights into early human–pig interactions during the initial stages of pig domestication in the Lower Yangtze region of South China. By integrating microfossil analysis of dental ...

Trait regression and loss have occurred repeatedly in numerous lineages in response to environmental changes. In parasitoid wasps, a megadiverse group of hymenopteran insects, yolk protein reduction ...

The Earth’s rotation has been decelerating throughout its history due to tidal dissipation, but the variation of the rate of this deceleration through time has not been established. We present a ...

Mutualistic arbuscular mycorrhizal (AM) fungi provide plants with mineral nutrients in exchange for carbon. Plants tightly control AM symbiosis and microbial symbionts interfere with host signaling to ...