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1.닭은볏이왜있을까?2.낙타의등에는왜혹이있을까?3.어떤동물이세상에서가장클까?4.겨울잠을자는동물들은무엇을먹을까?5.고양이가높은곳에서떨어져도왜괜찮을까?6.새떼는어떻게날아갈까?7.딱따구리는왜나무를쪼아댈까?8.동물은밤에어떻게앞을보는걸까?9.잉꼬나앵무새는어떻게말을할수있을까?10.카멜레온은어떻게빛깔이변할까?...(중략)...71.눈이없는물고기?72.거북이의등딱지는무엇으로만들어졌을까?73.거미는곤충일까?74.모기소리75.부화할악어는성별결정이온도에따라서?76.오징어를구우면왜구부러질까?77.달팽이의이빨78.개미허리의둘레는얼마일까?79.스누피는어떤종류인가?80.불을먹는다는상상속의동물불가사리는어떻게생겼을까?81.개복치가1톤인게사실일까?82.식염수에병든금붕어를넣으면건강해질까?