The lamprey, as its name implies, has seven gills. These gills are born behind the eyes in the form of concave holes, just like one small hole after another on the flute surface, just like measuring with a ruler and drawing with a compass. Such a regular and orderly linear arrangement really makes people marvel at the strangeness of nature's creations. In addition, some people mistake the seven gills for eyes, so the lamprey has another nickname "Bamiyan".
Extended data:
Seven lampreys are neither fish nor fowl. Their slender bodies are smooth and scaleless, like snakes and eels, with long thorns running through their bodies. The upper body is bare, and the lower body has the unique dorsal fin, lumbar fin and caudal fin of fish.
The eyes are flat and round, the whites are crystal clear, the texture is excellent, and the pupils are dark and deep, just like a black and expensive diamond embedded in a pure white marble tiles; The lamprey has a small nostril protruding upward, which is hidden on the top of the head and located between the eyes.
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