@thrujacksonseyes: Octopuses change color using three skin layers controlled by the brain: • Chromatophores: Tiny sacs of pigment (red, yellow, brown) that expand or shrink via muscle contractions to show color. • Iridophores: Cells that reflect light to create iridescent blues and greens. • Leucophores: Cells that reflect ambient light to provide a white background. They also use papillae (skin muscles) to change their texture from smooth to bumpy for physical camouflage.

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Sunday 08 February 2026 13:21:21 GMT