I remember the first time a friend and I came across “oxygenated” water “Wow!” he exclaimed. “You mean I’ve been drinking plain old hydrogen all this time?” Sheesh, I thought to myself, this can’t be ...

Bacterial evolution and oxygen adaptation: A timeline built from genomic, fossil, and chemical data. Colors show oxygen states: anaerobic (blue), aerobic (red), and proportion of aerobic lineages in ...

Aerobic exercise, also known as cardio, "involves activities that use large muscle groups rhythmically and continuously, raising the heart and breathing rates," explains Gontang. He says that the word ...

Bacteria, among the oldest of life forms, have lived in seemingly every possible habitat on the planet, from ocean trenches and mountaintops to hot springs and polar ice. Yet, they have left a limited ...

Atmospheric oxygen both enables complex life and is a hallmark of it. Aerobic respiration is so energetically efficient that it’s thought to have been needed for multicellularity. There is hardly any ...

Far below the reach of sunlight, at roughly 4,000 m deep on the Pacific seafloor, researchers have stumbled on a form of ...

This is Your Quick Training Tip, a chance to learn how to work smarter in just a few moments so you can get right to your workout. When you get right down to it, there are two types of exercise in ...

Microbial organisms dominate life on Earth, but tracing their early history and evolution is difficult because they rarely fossilize. Determining when exactly a particular group of microbes first ...