Actions taken by the Trump administration to stifle communications at federal agencies and to ban travel from select countries “have been deeply troubling” to many scientists, said AAAS President Barbara Schaal at an opening presentation of the AAAS Annual Meeting.

Thousands of samples collected from around the world will help scientists learn more about how plankton potentially influence food webs and climate change.

The microbial array in the Yanomami villagers, the most diverse ever reported, includes bacteria with antibiotic-resistant genes.

An understanding of how to cultivate a healthy “microbiome” in our living areas is now getting off the ground, boosted by next-generation DNA sequencing technologies.