Emotion in animals specialised form of Occam's razor used in ethology, in which he stated: Charles Darwin initially planned to include a chapter on emotion in "The Descent of Man" but as his ideas progressed they expanded into a book, "The Expression of the Emotions in Man and Animals". Darwin proposed that emotions are adaptive and serve a communicative and motivational function, and he stated three principles that are useful in understanding emotional expression: First, "The Principle of Serviceable Habits" takes a Lamarckian stance by suggesting that emotional expressions that are useful will be passed on to the offspring. Second, "The Principle of
The Man Who Wrote Frankenstein Shelley as shown by several letters. "The Man Who Wrote Frankenstein" includes a favorable review of "Shelley's Fiction" (1998) by Phyllis Zimmerman, a book in which Zimmerman argues for Percy Bysshe Shelley's authorship of "Frankenstein", and a short bibliography of books and articles about Percy Bysshe Shelley and "Frankenstein". Lauritsen praises poet Edmund Blunden's "" (1946), calling it the best short biography about Percy Bysshe Shelley. "The Man Who Wrote Frankenstein" was first published in 2007 by Pagan Press. "The Man Who Wrote Frankenstein" was praised by the critic Camille Paglia, who wrote in "Salon" that "Lauritsen assembles an overwhelming