pó-hōo-siak保護色

camouflage

camouflage (resemblance of an organism to its surroundings for avoiding detection); disguise

biology

English Wiktionary, “保護色” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E4%BF%9D%E8%AD%B7%E8%89%B2 · confidence: Medium (Wiktionary, Hokkien)