Wild Flyers : the Design of Gravity-defying AnimalsDVD - 2016
The sky is a challenging place to live, but extraordinary animals do something we only dream of ₆ take to the air. Some spend their lives airborne, others only visit, but they all have one thing in common: they only survive by taking to the skies. This three-part series reveals the incredible adaptations that explain how these animals have mastered the sky and why they all need it to survive.
Publisher: Arlington, VA : PBS Distribution, c2016
Characteristics: 1 videodisc (3 hrs.) : sd., col. ; 4 3/4 in