These tiny marvels dazzle and delight bird watchers all over the world, and NATURE reveals their stunning abilities as they have never been seen before.

These video clips from the episode, Hummingbirds: Magic In the Air can be used in the classroom to introduce and explain four different concepts found in the high school physics curriculum.

(Premieres Sundays April 4 and April 11) New technologies reveal what's behind incredible "moments of impact" - when animals come into contact with each other and the world around them.