| GMD | Text |
| Classification | 599.53 Eva |
| Publisher | Washington, D. C., National Geographic Society, C.2017 |
| Edition | English |
| Subject | Dolphins -- Juvenile literature.Dolphins -- Behavior -- Juvenile literature. Readers (Primary) |
| Series | National Geographic kids readers (London, England)., Level 1.National Geographic kids. |
| Description | 23 p : col, ill, col map ; 23 cm. |
| ISBN | 9781426324406 |