An adult octopus has up to two million chromatophores, or color cells ​ — as many as 130,000 per square inch [200 per square millimeter] — ​ in its skin.
Seekor gurita dewasa memiliki sampai dua juta kromatofora, atau sel warna ​ — sebanyak 200 per milimeter persegi ​ — di dalam kulitnya.