Phylogenetic and stable-isotope analyses implicated two methanogen-like archaeal groups,
ANME-1 and ANME-2, as key participants in the process of anaerobic methane oxidation. …

The discovery of deep-sea hydrothermal vents in 1977 revolutionized our understanding of
the energy sources that fuel primary productivity on Earth. Hydrothermal vent ecosystems are …

Mammals host gut microbiomes of immense physiological consequence, but the determinants
of diversity in these communities remain poorly understood. Diet appears to be the …

The assembly of single-amplified genomes (SAGs) and metagenome-assembled genomes (MAGs)
has led to a surge in genome-based discoveries of members affiliated with Archaea …

Oxidation–reduction reactions underlie energy generation in nearly all life forms. Although
most organisms use soluble oxidants and reductants, some microbes can access solid-phase …

The consumption of methane in anoxic marine sediments is a biogeochemical phenomenon
mediated by two archaeal groups (ANME-1 and ANME-2) that exist syntrophically with …

Diverse microbial ecosystems underpin life in the sea. Among these microbes are many
unicellular eukaryotes that span the diversity of the eukaryotic tree of life. However, genetic …

Anaerobic methanotrophic archaea have recently been identified in anoxic marine sediments,
but have not yet been recovered in pure culture. Physiological studies on freshly collected …

Invertebrates at hydrothermal vents and cold seeps must cope with toxic H 2 S. One proposed
protection mechanism involves taurine derivatives: At vents and seeps, many animals …

The Proterozoic-Cambrian transition records the appearance of essentially all animal body
plans (phyla), yet to date no single hypothesis adequately explains both the timing of the …