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319 million year old brain!

Shortly after the Cambrian Explosion discussed in chapter two (ok, actually about 181 million years later), a small fish of the Coccocephalus wildi species perished and became fossilized. The fossil, discovered about one hundred years ago was recently scanned using computed tomography (CT), and to their surprise, researchers discovered a somewhat perfectly preserved brain structure! Another small piece of the evolutionary puzzle! You can read about it here: https://www.cnn.com/2023/02/02/world/oldest-preserved-brain-fish-intl-scli-scn/index.html, and Nature published the study here: https://www.nature.com/articles/s41586-022-05666-1.

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Change your brain

Thanks to Amber Wolf for suggesting Neuroscientist Andrew Huberman's visit to the Rich Roll podcast to discuss neuroplasticity, the relationship between acetylcholine, norepinephrine, serotonin and do

Rhythm and Color

Thanks to Sinhong Park for sharing this fascinating video that relates our propensity for rhythm in chapter 6 to our propensity for color in chapter 8: https://www.youtube.com/watch?v=JiNKlhspdKg.

How do we make all those colors with our mouths?

In chapter 5 we encounter the incredible case of the descending larynx. This marvelous evolutionary adaptation allows us a much greater variety of mouth sounds. Now Tori Bloom sends us an internet mod

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