Can You Tell A Dolphin From A Porpoise?Book - 2012
How can you tell apart a dolphin and a porpoise? Do you know which is usually larger? Or which has cone-shaped teeth and which has flat teeth? Or which has a curved or hooked top fin? Find out these answers and more to become an expert on the differences between these smart swimmers.
Publisher: Minneapolis : Lerner Publications, c2012
Characteristics: 32 p. : col. ill. ; 27 cm