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来自维基百科,自由的百科全书
棘頭動物門(學名:Acanthocephala)是動物界的一個門。是一類身體前端有吻,吻上有鈎刺的假體腔動物。棘頭動物屬於寄生動物,吻上的鈎刺用來抓住牠的寄主腸壁。牠們具有複雜的生命周期,涉及到若干寄主,包括無脊椎動物、魚類、兩棲類、鳥類和哺乳類。大約有1420種。
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