Across the continent, the land and its wildlife breathe in warmth and renewal. For some animals, courtship rituals begin to heat up battles for dominance break out. For others, it's the time to tend to brands new life.

In autumn, change sweeps across America. As the trees greet the chill with a blaze of color, it's make or break time for the animals. Time to pull up stakes, make last minute preparations, and often find a mate before the cold sets in.