The Night sky is the backdrop to an arms race that has been played out for millions or years between billions of bats and billions or moths, where aerial dominance is decided by the tiny advantages in flying skill and sensory equipment.
The sky is one of the world's most challenging places to live, but across the planet, an extraordinary range of animals do something we can only dream of take to the air. Some spend their whole lives airborne, while others only visit. But, they all have one thing in common: they survive by taking to the skies.
Dozens of your favorite THIRTEEN and PBS programs are available to watch on-demand on many popular platforms.
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