#改變大小/形狀/重量/體積
#保護免受動物危害
#Modify size/shape/mass/volume
#Protect from animals
刺魨利用喝水使嵌入皮膚的尖刺豎起,藉此抵禦掠食者 (The skin of a porcupine fish protects from predators via embedded spines that erect when the fish inflates using sips of water.)