A pigment-containing cell that can change color by expanding or contracting, found in many animals including cephalopods, fish, and amphibians. These cells enable rapid color changes for camouflage, communication, or temperature regulation.
From Greek 'chroma' meaning color and 'phoros' meaning bearing or carrying, literally 'color-bearer.' The term was coined in the 19th century when biologists discovered that color changes in animals were controlled by specialized pigment cells.
Chromatophores are like biological pixels that can change color faster than a computer screen - cuttlefish can transform their entire appearance in milliseconds! Some chromatophores contain reflective platelets that act like biological mirrors, creating iridescent displays.
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