The Chinese began to breed goldfish a thousand years ago. Beginning with wild fish that sometimes showed a golden tinge, by selective breeding they produced dozens of different varieties with fantastic shapes and glorious colors. Since the beginning of the 16th Century, the Japanese have developed many other new and strange types. Fantails, Veiltails, Fringetails and Comets all have greatly enlarged or distorted tails. Nymphs have stubby egg-shaped bodies.
Telescopes have bulging eyes, and Celestials have eyes that look straight up.
Argonne National Laboratory, Division of Educational Programs, Harold Myron, Ph.D., Division Director.