text: For the most part, the author seems to have pretty  good information for the time of the book's printing, but for anyone who wants to read this book on purely scientific terms, be warned; there are several places where the  book goes awry, for example: the author states that tracks of tyrranosaurus  indicate that it was a solitary animal, occasionally hunting in pairs.  Problem: no  tracks of a t. rex have been discovered to date, a decade and  a half after the writing. Aside from that and a few other points, though,  the book is good reading
  