According to Chadden Hunter, producer for the North America episode, the documentary crew filmed roadrunners in Saguaro National Park and on private ranch land around Tucson.
Also on the North America episode, camera crews achieved a first in their filming, using "low light technology and cable dollies with a motion control tracking time-lapse camera" to glide cameras through the forests of Mississippi and Ohio for slow-mo firefly shots.
Each episode of Seven Worlds, One Planet focuses on a different continent. The next airing episode is "North America" which premieres Saturday, Jan. 25 on BBC AMERICA, AMC, IFC and SundanceTV.
Watch the trailer here: