Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A doctor that doesn't know biology?

As a biologist and a med. student I am appalled that Crichton made a basic and blatant error that his entire book rests on. If you have a population of organisms, and there is a mutation, THE WHOLE POPULATION DOES NOT MUTATE TOGETHER. The majority of the population stays in the old form. In this book Crichton has a population of organisms that all mutate together into a few scary things and then finally into something harmless and that saves the day. If this were REAL biology we would have a separate population surviving after each mutation. At the end of the book there would still be a population of rubber-eaters as well as a toxic population, etc. Needless to say this "Deus ad-lib" was a huge let down. Crichton needs to go back and read some of his biology texts. No wonder he doesn't practice medicine any more.