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Title: A reasonable yarn but the science is awful.
Review: I write this as a comment on all those who believe Alten did research for this book. I'll concede the book is a good page turner (although the plot and characters are one dimensional) but I find it difficult to believe Alten did any in depth research for this book at all. Otherwise extinct sharks trapped in the Marianas trench? Megalodons were open water feeders there would be little for them to feed on in a trench. The most productive parts of the ocean are the sunlit regions. Indeed it is well known that there is a general decrease in body size as you get deeper. Trapped by cold water? Possible but unlikely, their sheer size would give them thermal inertia. Whales changing their migratory routes in response to one predator? They didn't do that in reponse to whaling pressure. Scary book? What is really scary is that I read somewhere that the author took *years* to do the research.
