Introduction to sunfish: Mola mola is a very ancient bony fish species, and an almost vestigial tail fin can be seen on the exhibit. After losing the power of its tail fin, the sunfish can only rely on the swing of its dorsal and anal fins to move forward, so it has poor swimming skills and often floats on the sea surface. The stomach of the sunfish is actually formed by the expansion of the intestine. It only has the function of storing food, but has no function of digesting food. Small fish that have not yet been digested can be seen in the stomach.

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