| GMD | Text |
| Classification | 500 GAN |
| Publisher | New York, Kingfisher, 1995 |
| Subject | Ocean -- Juvenile literature.Marine ecology -- Juvenile literature.Marine animals -- Juvenile literature. |
| Series | I wonder why (New York, N.Y.) |
| Description | 32 p. : col. ill. ; 29 cm. |
| ISBN | 9781856976640 |