The Meaning of EvolutionSchmucker, Samuel Christian
History
The Meaning of Evolution
Schmucker, Samuel Christian
Evolution
Different fur-covered animals have specialized to meet the winter by
any one of three different methods. They may brave it out, hunting for
their food as best they can all winter long. Such a course is pursued
by the rabbit. Again like the squirrel, they may store large
quantities of food during the summer, and on this provender they may
subsist during winter, remaining for most of the time near their
hiding-places, which, however, they may frequently leave upon warm
days. A third method is less common, but very interesting. The
groundhog or woodchuck is the best-known example of the group. It
remains asleep, or, as it is technically known, dormant, during the
winter. This stupor is more profound than ordinary sleep, and from it
these animals awaken with difficulty. It is needless to remark that
the groundhog's behavior on the second of February has no relation
whatever to the weather we are to have later in the season. This is
coming to be pretty generally understood. While the newspapers each
year comment upon the groundhog and his shadow upon that day, year by
year the notice has more of humor in it, and fewer people pay any
attention to it.
As for the backboned animals which are cold-blooded, these must,
unless they are fish, give up the struggle completely, bury themselves
in out-of-the-way places, and go worse than dormant. They often become
absolutely cold and stiff. In the case at least of fish, it is quite
possible for them to be frozen stiff, even to be enclosed in cakes of
ice, and still to recover if the encasement is not too long continued.
But the snakes, the turtles, the toads, the lizards, all are hidden
beneath the ground waiting in absolutely unconscious rest the return
of warmer weather.
Public-domain text, read in full here on John Shaqi.
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