Dolphins: The serial killers of the water

The Saga of Pelorus Jack by Ross E. Hutchins

If you’ve ever been interested in learning about dolphins but thought that reading a non-fiction book was too boring, then The Saga of Pelorus Jack is the book for you!  The author basically tells you a ton of somewhat interesting facts about dolphins, but he does it by telling a story.  It’s child friendly so when he writes about how big of jerks dolphins can be he does it by saying they were defending themselves against a shark.  Whatever, we all know dolphins like to kill for sport.

“Dolphins have been observed engaging in the seemingly gratuitous killing of porpoises—going so far as to use sonar to locate the victim's vital organs and increase the lethality of the strike—but experts haven't quite worked out their motivation. Some speculate that the dolphins use the porpoises for target practice, preparing for possible clashes with fellow dolphins who infringe on their territory.”
excerpt from http://www.slate.com/id/2234729/