Overpowering Curiosity of a Mountain Sheep Christmas at the Primates' House The Trap-Door Spider's Door and Burrow Hanging Nest of the Baltimore Oriole Great Hanging Nests of the Crested Cacique "Rajah," the Actor Orang-Utan Thumb-Print of an Orang-Utan The Lever That Our Orang-Utan Invented Portrait of a High-Caste Chimpanzee The Gorilla With the Wonderful Mind Tame Elephants Assisting in Tying a Wild Captive Wild Bears Quickly Recognize Protection Alaskan Brown Bear, "Ivan," Begging for Food The Mystery of Death The Steady-Nerved and Courageous Mountain Goat Fortress of an Arizona Pack-Rat Wild Chipmunks Respond to Man's Protection An Opossum Feigning Death Migration of the Golden Plover. (Map) Remarkable Village Nests of the Sociable Weaver Bird Spotted Bower-Bird, at Work on Its Unfinished Bower Hawk-Proof Nest of a Cactus Wren A Peace Conference With an Arizona Rattlesnake Work Elephant Dragging a Hewn Timber The Wrestling Bear, "Christian," and His Partner Adult Bears at Play Primitive Penguins on the Antarctic Continent, Unafraid of Man Richard W. Rock and His Buffalo Murderer "Black Beauty" Murdering "Apache" THE MINDS AND MANNERS OF WILD ANIMALS MAN AND THE WILD ANIMALS If every man devoted to his affairs, and to the affairs of his city and state, the same measure of intelligence and honest industry that every warm-blooded wild animal devotes to its affairs, the people of this world would abound in good health, prosperity, peace and happiness. To assume that every wild beast and bird is a sacred creature, peacefully dwelling in an earthly paradise, is a mistake. They have their wisdom and their folly, their joys and their sorrows, their trials and tribulations. As the alleged lord of creation, it is man's duty to know the wild animals truly as they are, in order to enjoy them to the utmost, to utilize them sensibly and fairly, and to give them a square deal. I. A SURVEY OF THE FIELD I THE LAY OF THE LAND There is a vast field of fascinating human interest, lying only just outside our doors, which as yet has been but little explored. It is the Field of Animal Intelligence. Of all the kinds of interest attaching to the study of the world's wild animals, there are none that surpass the study of their minds, their morals, and the acts that they perform as the results of their mental processes. In these pages, the term "animal" is not used in its most common and most restricted sense. It is intended to apply not only to quadrupeds, but also to all the vertebrate forms,--mammals, birds, reptiles, amphibians and fishes.