雷利奥书籍摘要：But it is to the moral and intellectual faculties of the Dog that we must look for those remarkable peculiarities which distinguish him in so eminent a degree not only from his immediate neighbours, but also from every other quadruped. Unfortunately we have not the means of comparing him in a pure state of nature with the other animals of his tribe; for although it has been repeatedly attempted to determine his primitive stock, there can be no doubt that upon this point we are still as much as ever in the dark. There exist, however, in various parts of the world, considerable numbers of Dogs, the descendants unquestionably of races formerly domesticated, which, to all appearance, differ but little in their habits and manners from the Wolf and the Jackal, to one or other of which they frequently approach in form, and from each of which it has been confidently asserted that the domestic species was primarily derived. But the doubts to which this striking similarity might otherwise give rise are instantly removeThe present species is pure white throughout, with the exception of its crest, the longer feathers of which are bright yellow; and of the under surface of the wings and tail, which are straw-coloured, as are also occasionally the cheeks. The beak is nearly black. It is a native of the Moluccas, and is not unfrequently brought to Europe. It is remarkably intelligent, and becomes attached to those who show it kindness.……
