I knew of a tame ape in Chicago that learned to swing from the end of a clothes-line and seemed to enjoy it very much. The line was just the right length and properly hung so as to allow the ape to swing out from a kitchen window and touch the ground. Just for fun, some one cut a piece from the line so that he could not reach the ground; immediately the ape hunted another piece of cord, tying it to the end of his line so as to increase its length, and much to his delight, continued to swing on the line.
The distinctive features of animal protection and home government, especially in the higher groups, may compare favourably with any of the methods used by civilised man. This is true both of their offensive and defensive contrivances and for their monarchies and republics. They use shells, scales, plates of every kind, with innumerable modifications for various purposes--spines and allied armaments--all shapes and sizes; poisonous secretions, deadly odours, strong claws and teeth wielded by strong muscles, and form colonies that are more than a gregarious association. In most cases, they have communities composed of individuals living individual lives, yet which act in cases of need as one unit.
ANIMAL ARCHITECTS, ENGINEERS, AND HOUSE BUILDERS
_"The heart is hard that is not pleased With sight of animals enjoying life, Nor feels their happiness augment his own."_
The most popular and perhaps the most interesting department of natural-history study is that which treats of the manner in which animals utilise the various materials of the universe for purposes of protection, for war and defence, for raiment, food, and even the luxuries of life. Man, by his superior power of adaptation, excels the lower animals in providing for the comforts of life; but, on the other hand, in such practical arts as engineering and domestic architecture man frequently finds himself an amateur in comparison. With all man's inventions he has not been able to equal some of the remarkable results produced by some animals. The beaver, for example, shows a more profound knowledge of hydraulics than man himself. The power possessed by these craftsmen, not only in felling trees, but in duly selecting the best places for making homes and in appropriating substances suitable for their needs, is a never-ending marvel!