The gathering swarms bats, butterflies, and more

Downer, John. (Added Author). PBS Distribution (Firm) (Added Author).

Summary: A look at some of the planet's great gatherings, creatures that come together in inconceivable numbers, sometimes in millions, billions, and even trillions. Some gather to breed, migrate, for protection, or simply to keep warm. But in the process, a kind of super-organism is created in which individual intelligence is superseded by a collective consciousness that shares information and moves with a single purpose for the benefit of all.

Record details

ISBN: 841887021821
Physical Description: videorecording (BLURAY)
videodisc
1 videodisc (60 min.) : sd, col. ; 4 3/4 in.
Publisher: [United States] : PBS Distribution, 2014.

Content descriptions

General Note:	Title from container.
Target Audience Note:	E.
System Details Note:	Blu-ray disc (requires Blu-ray player for playback) ; anamorphic widescreen format (1.85:1 aspect ratio); 5.1 DTS-HD Master Audio, 5.1 DTS-HD Digital surround.
Terms Governing Use and Reproduction Note:	For private home use only.
Language Note:	In English ; English SDH Subtitles ; English audio description.