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What evolved first—our brain or gut?

Source: Phys.org · Oct 19, 2026 13:40 UTC

Black-and-white close-up of chemistry lab glassware by a window — File photo euthman / Flickr · CC BY-SA 2.0 · Source

The Quick Take

What if the brain evolved to serve the gut? Scientists at Flinders University are challenging a cornerstone of biology, arguing that the gut's nervous system may be the body's original "brain," with the brain evolving later to support its needs.

Read the full story at Phys.org

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