Dolphins - World Wildlife Series Author:Peter Evans By: Peter Evans. Covers true dolphins, porpoises and smaller toothed whales. Describes unique co-operative behavior displayed by dolphins, in particular bottle-nosed dolphins and killer whales: communal fishing, helping of others in distress, babysitting of newborns by aunts. Also discusses communication, social behavior, bonds between mother an... more »d calf, the method of acoustic imprinting plus much more. 128 Pages. Softcover.« less