Excerpt: ...perceive such a manifest difference in temper between individual horses and dogs and other animals who are domesticated, that the same difference must exist in the wild species, and that, in fact, there may be shades of virtue and vice in lions, tigers, bears, and other animals; and that there does exist in animals as well as in man, more or less according to their natural dispositions, a remnant of those affections which in the garden of our first parents were so strongly implanted as to induce the lion to lie down with the lamb.