Brainless sponges contain early echoes of a nervous system

Simple sponges contain cells that appear to send signals to digestive chambers, a communication system that offer hints about how brains evolved.

Primate tool use: But what about their brains?

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Brainless sponges contain early echoes of a nervous system

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Metazoa: Animal Life and the Birth of the Mind

Gia Voeltz: Redrawing the cell's floor plan

How does the structure of insect brains compare to the brains of

Cilia in the brain may be busier than previously thought

Coding and Redundancy: Man-Made and Animal-Evolved Signals by Jack

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