Longer Days Led to Oxygen Buildup on Early Earth: Study
Longer Days Led to Oxygen Buildup on Early Earth: Study
Researchers propose that some of the planet’s earliest photosynthesizers benefited from a slowing of the Earth’s rotation that allowed them to produce a surplus of oxygen and paved the way for more complex life.  
Longer Days Led to Oxygen Buildup on Early Earth: Study
Longer Days Led to Oxygen Buildup on Early Earth: Study

Researchers propose that some of the planet’s earliest photosynthesizers benefited from a slowing of the Earth’s rotation that allowed them to produce a surplus of oxygen and paved the way for more complex life.  

Researchers propose that some of the planet’s earliest photosynthesizers benefited from a slowing of the Earth’s rotation that allowed them to produce a surplus of oxygen and paved the way for more complex life.  

microbes
Microbial Fossils Found in 3.4-Billion-Year-Old Subseafloor Rock
Microbial Fossils Found in 3.4-Billion-Year-Old Subseafloor Rock
Ruth Williams | Jul 14, 2021
The material, now part of an African mountain range, bolsters the idea that hydrothermal veins supported early forms of life.
Human Blood Harbors Cell-Free Microbial DNA
Human Blood Harbors Cell-Free Microbial DNA
Abby Olena | Jul 9, 2021
After controlling for high levels of bacterial contamination in their lab and reagents, researchers detect microbial genetic material in plasma samples from healthy people and cancer patients.
Scientists Go Down the Cicada Hole
Scientists Go Down the Cicada Hole
Lisa Winter | Jun 24, 2021
Brood X’s emergence tunnels—numbering in the hundreds per square meter of soil—give researchers a special opportunity to study how such extreme soil aeration affects the ecosystem.
Microbes in Human Fetuses Spur Immune Development
Microbes in Human Fetuses Spur Immune Development
Abby Olena | Jun 3, 2021
Researchers identify live bacteria in fetal guts, skin, lungs, and placentas that activate memory T cells, indicating that early exposure to microbes could help educate the developing immune system.
SARS-CoV-2 Antigens Leaking from Gut to Blood Might Trigger MIS-C
SARS-CoV-2 Antigens Leaking from Gut to Blood Might Trigger MIS-C
Alejandra Manjarrez | Jun 3, 2021
Researchers find traces of SARS-CoV-2 in the stool and blood of kids with the post–COVID-19 inflammatory disorder, and signs of increased intestinal permeability.
Signs of Ancient Microbial Life Abundant in Earth’s Crust: Study
Signs of Ancient Microbial Life Abundant in Earth’s Crust: Study
Catherine Offord | Jun 3, 2021
Researchers report chemical and molecular signatures of microbial activity from millions of years ago in mineral samples from abandoned mines in Sweden and nearby countries.
Sailing the Seas in Search of Microbes
Sailing the Seas in Search of Microbes
Shawna Williams | Jun 1, 2021
Projects aimed at collecting big data about the ocean’s tiniest life forms continue to expand our view of the seas.
Fecal Microbiota Transplantation Is Poised for a Makeover
Fecal Microbiota Transplantation Is Poised for a Makeover
Shawna Williams | Jun 1, 2021
With multiple microbiota therapeutics in the pipeline for recurrent Clostridium difficile infection, clinicians foresee a shift in treatment options for the condition.
Cities Have Distinct Microbial Signatures: Study
Cities Have Distinct Microbial Signatures: Study
Lisa Winter | May 27, 2021
The researchers found thousands of species not previously documented.
Can Single Cells Learn?
Can Single Cells Learn?
Catherine Offord | May 1, 2021
A controversial idea from the mid-20th century is attracting renewed attention from researchers developing theories for how cognition arises with or without a brain.
Infographic: Investigating Whether Single Cells Learn
Infographic: Investigating Whether Single Cells Learn
Catherine Offord | May 1, 2021
Historical and modern experiments have hinted that unicelluar organisms can learn from their experiences, but the idea still has its critics.
Many Deep-Sea Microbes Invisible to Mammalian Immune System
Many Deep-Sea Microbes Invisible to Mammalian Immune System
Abby Olena | Mar 12, 2021
In a new study, human and mouse cells recognized only one in five bacterial species collected from more than a mile below the Pacific Ocean’s surface.
Researchers Propose Automating the Naming of Novel Microbes
Researchers Propose Automating the Naming of Novel Microbes
Jef Akst | Mar 1, 2021
With modern technologies unearthing novel bacterial and archaeal species by the dozens, hundreds, or even thousands, manually naming them all is no longer practical, scientists say.
Retrons Help Bacteria Defend Themselves from Phages: Study
Retrons Help Bacteria Defend Themselves from Phages: Study
Catherine Offord | Feb 1, 2021
The mysterious DNA sequences appear to help bacterial cells spot when they’ve been infected with viruses—and prompt those cells to self-destruct.
Microbes Find Their Niche in Underwater Shipwrecks
Microbes Find Their Niche in Underwater Shipwrecks
Jef Akst | Nov 1, 2020
Early investigations of the microbial communities in and around sunken boats reveal that there are patterns to where bacteria settle.