Science Aug 24

During the dry season, what little water is available forms small pools that attract animals. That makes hunting a more reliable source of food. Photo by Jeff Leach
Gut microbes found in hunter-gatherers shift with the seasons

The gut microbes of the Hadza, Tanzanian hunter-gatherers, shift with the seasons, according to a new study. Applied on a longer timescale, these patterns might explain why industrialized populations have less diversity in their gut microbiomes and more chronic disease…

Science Jun 11

Suffocating cells for science

If you believe that all living things need oxygen to breathe, you’re not only wrong, but hopelessly human-centric. But don’t be too hard on yourself. Most mammals are biased toward multicellular organisms. It’s true that humans, along with mammals, birds,…

Science Apr 23

Can we save our body’s ecosystem from extinction?

The sheer amount of bacteria in and on your body weighs three to four pounds, the same weight as the human brain. But overuse of antibiotics is threatening the microbes our guts need, and possibly giving rise to modern plagues.

Science Jun 14

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A New Genetic Map That Could Make Your Skin Crawl

Very little has been known about the trillions of bacteria and other microorganisms in our bodies. But now, scientists with the Human Microbiome Project have completed the first microbial map of healthy humans. Jeffrey Brown speaks with Dr. Eric Green,…