How does evolution select the fittest "individuals" when they are ecosystems made up of hosts and their microbiomes? Biologists debate the need to revise theories. Read more at QuantaMagazine.org. Music is "Chee Zee Jungle - Primal Drive" by Kevin MacLeod.

Should Evolution Treat Our Microbes as Part of Us?

Susan Valot narrates in-depth news episodes based on Quanta Magazine's articles about mathematics, physics, biology and computer science.

Science

Physics

Life Sciences

When it comes to bizarre forms of electricity, superconductivity is just the beginning.

Meet Strange Metals: Where Electricity May Flow Without Electrons

Gut feelings, like the stomachache one might get from overeating, are driven by the enteric "second brain" in our digestive systems.

In the Gut's 'Second Brain,' Key Agents of Health Emerge

The placenta has a unique trick for keeping immune defenses on standby, even when no viral infections threaten a pregnancy.

During Pregnancy, a Fake 'Infection' Protects the Fetus

A recent neurological study provides an unprecedented look at how number sense works in the human brain.

Why the Human Brain Perceives Small Numbers Better

An Icelandic peninsula that hadn't seen any volcanism for 800 years has now awoken. Eruptions could continue for decades or even centuries.

Should Evolution Treat Our Microbes as Part of Us?

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