Students tried their hands at making lanterns with prickly spiny puffers Wednesday as part of a five-day marine biology camp being held at National Taiwan Ocean University. The lantern-making class was one of the highlights of the camp. The participants were taught to remove the skin of the fish, immerse it in formalin, a chemical used as a preservative and disinfectant, and stuff the dried body with paper balls to keep the puffer inflated. The lantern was completed after being decorated with other parts of the fish and adding a light bulb. A spiny puffer is a small fish with erectile spines that defend its body when threatened. The five-day camp, which started July 6 and has drawn more than 30 high school students, is being held by the University's Department of Aquaculture. Other activities include producing fish feed, learning about aquatic invertebrates, taking a field trip to the university's aquatic animal center, and an introduction to breeding. 