There are so many things which bother me about this book that I don’t even know where to begin.  But since I am a visual person, I’ll start with the ‘photographs.’  These, of course, aren’t really photos but just someone manipulating internet images onto an outdoor image.  Much of the information is also straight from the internet, much of it from Wikipedia, so I’m not sure how accurate that is.    Then there is the whole time issue which concerns me.  Apparently bison originated in Eurasia and came to North America over the Bering land bridge about 10,000 years ago, right when these cats were disappearing.  Plus did horses then look like horses today?  Young kids love to look at pictures of saber-tooth tigers, however, these pictures are obviously doctored and the text isn’t of the highest quality.  Your money is better spent elsewhere.