| − | Charles Darwin wrote or co-wrote 25 books and a number of articles on a wide variety of subjects within biology during his life. He showed a special interest in insects and was the foremost expert on barnacles, unsurpassed until many years after his death. | + | [[Charles Darwin]] wrote or co-wrote 25 books and a number of articles on a wide variety of subjects within biology during his life. He showed a special interest in [[insects]] and was the foremost expert on [[barnacles]], unsurpassed until many years after his death. |