Assertion: cuttlefish's skin | /r/Synonym | chromatophore
Facets:
Source sentences:
text: Skin color changes are engineered by expanding or contracting pigment-filled bags in the skin called chromatophores.
text: In cuttlefish, color changes are accomplished instantly by small structures in the skin called chromatophores, leucophores and iridophores--tiny bags of ink that contract and expand to create color like pixels on a screen.