Sage-Grouse Display Lekking Behavior

Nature
Air Date: 05/19/15 | Rating: NR

In the springtime, male greater sage-grouse (Centrocercus urophasianus) gather in groups, called leks, to compete for females. Males guard a territory a few meters in size (on average) and try to attract a mate by ruffling feathers and making a distinctive noise produced by air sacks in the chest.

Nature Image

The Last Orangutan Eden
S33 Ep10 | 53m 10s
Air Date: 02/25/15 | Expires: 02/24/29 | Rating: NR

Ecologist Chris Morgan visits endangered orangutans in Northern Sumatra.

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Animal Homes: The Nest
S33 Ep11 | 52m 55s
Air Date: 04/07/15 | Expires: 04/06/29 | Rating: NR

The first in a three-part series about how animals build their remarkable homes.

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Animal Homes: Location, Location, Location
S33 Ep12 | 52m 55s
Air Date: 04/14/15 | Expires: 04/06/29 | Rating: NR

Finding a good base of operations is key to successfully raising a family.

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Animal Homes: Cities
S33 Ep13 | 52m 55s
Air Date: 04/21/15 | Expires: 04/06/29 | Rating: NR

Animals congregate in huge colonies partly out of necessity and partly for the security.

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