A Crystal Chalice
Clip: Season 30 Episode 2 | 1m 17s
Male swiftlets use their own building material, gluey saliva, to make their nests.
Male swiftlets use their own building material, gluey saliva, to make their nests. Constructed layer by layer along the cave walls, it can be weeks of painstaking work.
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Sue and Edgar Wachenheim III, Charles Rosenblum, Kathy Chiao and...
A Crystal Chalice
Clip: Season 30 Episode 2 | 1m 17s
Male swiftlets use their own building material, gluey saliva, to make their nests. Constructed layer by layer along the cave walls, it can be weeks of painstaking work.
Problems playing video? | Closed Captioning Feedback
How to Watch Nature
Nature is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
Explore More Ways to Watch
Bring the beauty and wonders of wildlife and natural history into your home with classic NATURE episodes.Providing Support for PBS.org
Learn Moreabout PBS online sponsorship
Preview: S30 Ep2 | 30s | Airs Wednesday, February 12, 2014 at 8:00 p.m. ET/PT. Check your local listings. (30s)
Preview: S30 Ep2 | 30s | Premieres Wednesday, November 2, 2011 8:00 p.m. ET/PT. Check your local listings. (30s)
Clip: S30 Ep2 | 1m 53s | Leafcutter ants shift 40 tons of soil to make their subterranean home. (1m 53s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorship
- Science and Nature
Follow lions, leopards and cheetahs day and night In Botswana’s wild Okavango Delta.
- Science and Nature
Explore scientific discoveries on television's most acclaimed science documentary series.
Support for PBS provided by:
Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Sue and Edgar Wachenheim III, Charles Rosenblum, Kathy Chiao and...