更新1:
Billy is a reflect on story of an evolution of fish, but in real it was a baby shark .In the sea,owing to top not had fin ,Often than misunderstood was an ordinary big fish. Billy was a baby fish, It looked special.It not had fish the fins ,billy had many small fish friend,but the sized of the fish was bigger than a grown up fish. Billy looked liked a big fish for the other fishes who lived in that ocean. Billy loved to play with them .