Lampreys look very much like ordinary eels. They have a slender body with exposed skin without scales. There is a long dorsal fin on its back, which extends back to the tail end and surrounds the tail to form a caudal fin. In addition, it has no other parts on its body. No other fins are pres...
Several rare blind fish have been discovered in dark underground caves in southwest China. The largest body length of these blind fish is less than 10 centimeters, and their appearance is very strange: the slender body is pink and transparent, and the spine and internal organs in its body can be cle...