The sea squirt uses its nervous system early in life to move around and find a suitable rock to attach to; once attached and sedentary, movement is no longer necessary for survival, so the sea squirt digests its brain for energy.
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Unidentified Speaker — WHY Exercise is so Underrated (Brain Power & Movement Link) [DsVzKCk066g]Evidence Quote
“Early in its life, the sea squirt has a nervous system. It will use this nervous system to move around and find a suitable rock to attach itself to, then it will spend the rest of its life there. At that point, movement is no longer a necessity for survival, so the very first thing the sea squirt does is it digests its brain for energy.”
Created: 8/11/2026, 1:14:22 AM
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