How did the hexagonal dinosaur fish transform?

Transform in the process of growth. Hexagonal dinosaur fish will go through many stages in its growth process, including juvenile fish, juvenile fish and adult fish. At different stages, their shapes and colors will be different, which is called metamorphosis. For example, the juvenile hexagonal dinosaur fish is small, light yellow or light green, with black spots on its body; However, adult fish are large in size, dark in color, brown or orange, and have black lines on their heads and backs.