Back to today’s briefing

Story perspectives

Study Reveals Sea Urchins Possess Unique 'All-Body Brain'

11/13/2025

49 7

Summary

Story summary

A study published in Scientific Reports reports that sea urchins have an 'all-body brain' with a network of neuronal cells and light-sensitive photoreceptors throughout their bodies.
The structure resembles vertebrate brains, suggesting sea urchins are more neurologically advanced than previously thought.
Researchers say the findings challenge the view that sea urchins are brainless and imply a unique form of intelligence.

1 of 1

Story summary

A study published in Scientific Reports reports that sea urchins have an 'all-body brain' with a network of neuronal cells and light-sensitive photoreceptors throughout their bodies.
The structure resembles vertebrate brains, suggesting sea urchins are more neurologically advanced than previously thought.
Researchers say the findings challenge the view that sea urchins are brainless and imply a unique form of intelligence.