Rating: 
Summary: Better than "Meg" but still improbable
Review: It is probably inevitable that Charles Wilson's "Extinct" will be compared to Steve Alten's "Meg." Both books deal with megalodons, the giant ancestors of the great white shark. If comparisons are in order, it is necessary to state that "Extinct" is better than "Meg" if only because the former does not lapse into farce the way the latter does with its wild improbabilities. Still, "Extinct" is quite improbable in itself.Wilson does an admirable job of establishing that megalodons, long thought to be extinct, could still exist. He draws on the relatively recent discovery of "megamouth," another species previously thought to be long extinct, to make the case. But the novel becomes very improbable in two respects. First, the thought of these 25-foot and longer sharks migrating from the deepest part of the Pacific Ocean to the Gulf of Mexico and then up a river is rather hard to accept. However, that notion is entirely probable compared to the sharks' habit of attacking humans no matter how much easier alternate prey would be. "Extinct" nearly lapses into the territory of "Jaws: The Revenge," in which a great white follows a family from New York to the Bahamas. Though the novel moves through its 300+ pages quickly, much of it is, as others have pointed out, rather confusing. Perhaps to someone familiar with the geography of the area, this confusion would not be a major concern, but I found it a bit too much work to figure out the logistics of some of the attacks. The book's strongest point is the relationship between two of the sharks' hunters, a single mother who runs a charter boat and a man who runs a fish hatchery. Wilson shows admirable restraint in allowing their relationship to develop tentatively. But "Extinct" is the story of the sharks, and it simply becomes too improbable and leads to an unsatisfying ending.
Rating:
Summary: A so-so book for summer
Review: This book is not the best I have ever read. Carrying on in the tradition of "Carcharadon" and "Megalodon", we meet the giant shark turned human eater once again. Although far above "MEG", the book is often confusing or unrealistic. Come on, a fifty foot shark in a river! Also, there is not enought detail describing the shark and the author using "gaping maw" too much.
Rating: 
Summary: Not MEG, but close
Review: Although the writing is a little better in Extinct than in Meg, this book gets rather boring from time to time. It is still a good book, and seems to be well researched. I would read this book after I read Meg.
Rating: 
Summary: I felt although this book was good, some of it was unlikely.
Review: I read Extinct last summer and after reading Steve Alten's Meg this morning would like to comment on it. Though Wilson certainly lacks the clarity of view of men such as Robert E. Howard and Edgar Rice Burroughs, he does present a very entertaining, scary read. At first, the novel seemed perfectly plausible though in the second half, I felt it began to stretch credibility with a shark foraging up the Mississippi and finally a pair of 200-foot sharks appearing for the finale. Despite these perceived shortcomings, though, I felt it was well worth my time to read.
Rating:
Summary: The best shark book since Benchley's "JAWS"
Review: Wilson has cafted a fine horror/thriller. "Extinct" has o be the finest shark book since Benchley created"JAWS." The story grabs you, the characters interest you and the descriptions of Mississippi completely envelope you. A fine summer read.
Rating:
Summary: The book was O.K.,But there was not enough detail.
Review: The book had its moments,but there was not enough detail.I had trouble trying to picture what was going on at the end when the shark was attacking the boat.All it said was the big mouth and huge shape.Jaws is by far better.I wish Benchley would write a book about the carcharodon megalodon.
Rating: 
Summary: Staggering.
Review: A terrific read -- one of the best thrillers of recent memory.
Rating:
Summary: GREAT!
Review: The most realistic, scarey thriller I've ever read. It'll make you think--twice before you step in the ocean.
Rating:
Summary: Extinct was awesome. I couldn't put it down.
Review: This story kept me coming back for more. I have already read it twice and will probably read it a few more times. You have to deep reading to find out what comes next. The worst part about the book, is that if you think about it, there might be some truth to it. There is a possability that these sharks still live.
Rating:
Summary: jaws in a river
Review: Surprisingly this was a good book (read my review of direct descendant). I wasn't sure if Wilson had it in him (i wasn't very fond of the only other book of his i read). But this was kind of you typical shark novel, except it was in a river. my recommendation is to read this book
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