#改變光線/顏色
#保護免受動物危害
#保護免受光危害
#保護免受溫度危害
#從環境中感應化學物質（氣味、味道等）
#Modify light/color #Protect from animals
#Protect from light
#Protect from temperature
#Sense chemicals (odor, taste etc.) from the environment
對荷爾蒙反應的色素細胞 (Pigments cells respond to hormones)
藉由細胞周圍黑色素顆粒的移動，蛙類皮膚中的色素會對荷爾蒙產生反應而變色
(Pigments in frog skin change color in response to hormones by moving melanin grains around cells.)
