Biological production of this greenhouse gas, once thought to be the reserve of anaerobic microbes, occurs in these widespread, photosynthesizing cyanobacteria.
Today’s extinction rates are sky-high. But scientists debate if that’s sufficient evidence to conclude that Earth is undergoing a mass extinction event—or whether that’s even a helpful designation.
Phylogenomics data place the enigmatic plankton in the middle of the algal family tree, despite their apparent lack of plastids—an organelle characteristic of all other algae.
Brazilian researchers report a relatively large diversity of fungi in marine ecosystems surrounding Antarctica, but warn that climate change could bring unpleasant surprises.
Saliva tests screen staff and students at University of Illinois; Study ranks species most susceptible to SARS-CoV-2 infection; COVID-19 clinical trials test drugs that inhibit kinin system