This book is full of beautiful photos, but the text is not my favorite. The book tells readers that male gray wolves are the biggest wolves (at 90 to 175 pounds and 5 feet long) and that red wolves are smaller (at about 60 pounds), but the book does not tell readers how the female wolves compare in size, unfortunately. On this page I also think that it would have been helpful if there had been a visual aid showing us how many basketballs or something 5 feet long would be. The book then goes on to tell readers that wolf packs have an alpha pair, but it is my understanding that wildlife biologists are not using this terminology anymore as they now have a better understanding of wild wolves and pack dynamics. At the end of the book, the audience is told that some people see wolves in the wild and that others visit zoos to see wolves. I feel the book could have been more accurate and informative.