The wildest animals do not repose, but seek their prey now; the fox, and skunk, and rabbit, now roam the fields and woods without fear. They are Nature’s watchmen —links which connect the days of animated life. How does Thoreau distinguish the natural world, perhaps in contrast to the human world?

He describes the manner by which the forest sustains life.

He characterizes nature by its lack of reservation.

He describes the organized structure of the forest world.

He characterizes nature by its constant alertness and activity.