Congratulations to the Banfield Lab (Environmental Science, Policy, and Management) for two new publications describing the diversity and metabolic capabilities of the largely uncultivated, ultra-small bacteria comprising the Candidate Phyla Radiation. Published July 13th, 2021 and August 17th, 2021 in mSystems: https://doi.org/10.1128/mBio.00521-21, https://doi.org/10.1128/mSystems.01205-20