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The sound and the fury: Supreme Court hears sonar case
Oct. 8: Supreme Court justices seem likely to let the Navy continue using sonar until there is more proof that it is harmful to whales, as environmental groups have charged. NBC's Pete Williams reports.

300 penguins airlifted back home

The eco-friendly home

Man builds house of recycled tires

Ecotourism strikes a careful balance

Environment slide shows

Nature's Best

'Nature's Best' awards
View the winning images that were featured at the Smithsonian National Museum of Natural History.

'Nature's Best' backyards

Guarding gorillas in Rwanda, Congo

'Nature's Best' photos by youth

More from 'Nature's Best'

'Nature's Best' winners

Sea turtle help -- and harvest

Threatened wildlife on 'Red List'

‘Worst Polluted’ sites on Earth

Greenland's melting ice

Photo features

Getty Images	The Week in Pictures From celebrations to curfew, people around the world share their moments.
Getty Images	PhotoBlog View and discuss the pictures and issues that caught our eyes.