Dolphins and porpoises /

Describes the physical characteristics, habits, and natural environment of dolphins and porpoises and discusses their evolution and relationship to human beings.

Bibliographic Details

Main Author:	Hatherly, Janelle
Other Authors:	Nicholls, Delia
Format:	Book
Language:	English
Published:	New York : Facts on File, [1990]
Series:	Great creatures of the world.
Subjects:	Dolphins > Juvenile literature. Porpoises > Juvenile literature. Dolphins. Porpoises.