Category: Science - Biology
Copyright 1961 by the Southwestern Monuments Association. All rights reserved. No part of this book may be reproduced in any form without permission in writing from the publisher, except by a reviewer who may quote brief passages in a review to be printed in a magazine or news...
The life history of the beaver is one of the most interesting of all mammals. It has been studied for centuries by naturalists in both the New and Old Worlds, for the beaver, wi...
13. Part 13Although this little animal has a slight heaviness of the hind quarters, reminiscent of the larger skunks, it is indeed, as both generic and specific names suggest, much more li...
11. Part 11Description: Doglike in appearance, but larger than a big dog. Carries its short, bushy tail above the horizontal when traveling. The gray wolf is almost unbelievably big. Total...
4. Part 4Food habits of the various types of rodents differ to a great degree. Perhaps the term omnivorous might be applied to most of them because virtually all rodents will eat insects...
12. Part 12It will be apparent, even to the casual observer, that the marten is most precisely evolved to meet the frigid conditions imposed by its boreal habitat. The long, fine-haired wi...
3. Part 3In a general way the deer of the United States may be divided into two groups, these separated geographically by the Continental Divide. East of this line is the territory occup...
8. Part 8Description: This woodrat will be recognized at once by its bushy, squirrel-like tail. The several other species in the same range have the usual scanty growth on the tail, so t...
10. Part 10The predators hold a favored place in the esteem of most naturalists. At first, sympathy for the weak and indignation against the strong are perfectly natural human feelings. As...
7. Part 7The common name “white-tailed prairie dog” is usually applied to _Cynomys gunnisoni_, the most widely distributed member of the race. The range of this species borders on but se...
2. Part 2Through a study of fossil forms it has been determined that our present hoofed animals evolved from creatures which lived on the edges of the great tropical swamps that once cov...
5. Part 5As the map shows, _Sciurus aberti_ and its many forms are confined in the United States mainly to the high country along parts of the Colorado River, and also to that great esca...
6. Part 6Squirrels play a considerable part in perpetuating this national heritage. The fact that they do this more or less accidentally merely serves to call attention to the subtle pat...
1. Part 1Copyright 1961 by the Southwestern Monuments Association. All rights reserved. No part of this book may be reproduced in any form without permission in writing from the publishe...
14. Part 14Probably no mammal in the United States is more certain soon to become extinct than these great bears. Many factors contribute toward this end, chief among them being the low re...