Life in a Dolphin Pod

Some dolphins live in huge pods, and others prefer to live in small goups or even alone. What do we really know about dolphin behavior? This exciting book answers such questions as: - what do dolphins do all day and night? - How do dolphins learn to hunt and cooperate in catching prey? - When do they rest and how do they decide with which group they will spend their time? - Why do Hawaiian spinners travel in groups of hundreds?