One of the great mysteries is what happened to the dinosaurs, and it has taken great detective work to give us an answer.
Rex and the Crater of Doom, some brilliant, not to mention determined, scientists roam the world and seek out the clues.
What they conclude is that the earth withstood a colossal impact with a meteor (or perhaps a comet) 65 million years ago.
The resulting cataclysm destroyed half the life on the planet.
Walter Alvarez, a geologist at the University of California at Berkeley, and one of the four scientists who present this theory on the mystery, tells the story in a clear narrative that contains a wealth of scientific material.
The book does require an investment of attention, but the presentation is quite readable, and the story itself is fascinating..
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