Our knowledge of the present and past fauna of Europe is as yet insufficient to indicate with precision the original homes of its component elements, but I hope that the lines of research laid down here, and the method of treatment adopted, will aid zoologists and geologists in collecting materials for a more comprehensive study of the history of our animals.
proportion of them still inhabit Northern Asia, though most of them are now extinct in Europe. After having thoroughly studied such a recent geological migration, we learn to understand others better, though the more ancient they are, the fewer are the traces and the more difficult are they to follow.
Then again we have to take into consideration the fact, that whilst mammals, particularly the larger herbivores, are forced to migrate frequently owing to scarcity of food or temporary changes of climate, many of the invertebrates remain practically unaffected by either. Most of our land mollusca, for instance, are satisfied with meagre provender, and stand extremes of climate well, as long as there is sufficient moisture. As a result of their peculiar disposition, many of them, no doubt, have survived through several geological epochs, and have witnessed vast geographical revolutions in their immediate surroundings, whilst mammals are comparatively short-lived. Being driven from one country to another,
Who Murdered Mr. Malone? Book 1 of the Garden G... Read more
After finding the body of a dragon in a metalli... Read more
*This is a stand-alone book in the Fearsome Ser... Read more
Fans of the Hunger Games and Sci-Fi Thrillers will... Read more
While rumors of monsters rising in the south bring... Read more
See it as donating a moment of your social media time, every little thing helps us improve and stay online.
The list of books below is based on the weekly downloads by our users regardless of eReader device or file format.
See more popular titles from this genre.