ccasionally see two
large, upright ears--unmistakably those of a rabbit, seemingly sticking
out of a hole in the ground--yet moving at a rapid pace, and all the
while no rabbit in view. For all the world these vertical ears belonging
to an unseen owner resemble in use and appearance the periscope of a
submarine--the difference being that the rabbit uses his 'periscopes'
for hearing, in order to locate and avoid his foe, the submarine its
periscope to locate and attack its enemy."

The sheep terraces, which are so common on the sides of hills, though
made by sheep, are not roads, but feeding grounds. Sheep, when walking
on a hillside, invariably graze on the upper side, as they cannot reach
the lower grass. Therefore they walk backwards and forwards on the
slope, just as a reaping machine is driven over a hillside wheat-field.
As the sheep takes a "neck's length" each time, the little ridges or
roads correspond exactly with the measurements of the sheep's neck.

There are as many kinds of roads and terminals in the animal world as
there are in the human, and lest our pride make us forget, we should
remember that even the Panama Canal is dug according to the plan of a
crawfish's canal, such as may be seen near any muddy stream. It is
strange that no animal has learned to build elevated roads, though
animals that live in trees, like flying squirrels, monkeys, and flying
foxes, are very skilled in going from one tree to another. They have
regular aerial highways, and some of the tree frogs are veritable
wonders in the accuracy of their leaps from tree to tree. Even more
skilled than these are the agamid lizards of India, whose chief means of
travel is a folding parachute, which at a moment's notice can be erected
and carry to another tree its lucky possessor. In Borneo is an aviator
tree-snake which is able to so spread his ribs and inflate his body that
he can actually sail from branch to branch in the tree-tops.

There are night travellers as well as day travellers; in fact, there are
more animals that roam around in a great forest at night than in the
daytime. They sleep during the day, when the day animals are roaming
about, and go forth to roam when it is night. It is then they seek for
prey, and are much feared by day animals. They see well in the dark, and
travel so lightly that their footsteps cannot be heard.

On the Island of Java are found a family of strange, dwarfish little
beings, which are called by the na