Environment of the United States

Nearly 300 Tyrannosaurus rex bones that were dug up from three sites in the United States and assembled into a single skeleton sold Tuesday at an auction in Switzerland for 4.8 million francs ($5.3 million), below the expected price.

In what could prove a significant move for communities facing air pollution, the Environmental Protection Agency proposed on April 6 that chemical plants nationwide measure certain hazardous compounds that cross beyond their property lines and reduce them when they are too high.

The Tyrannosaurus rex is often shown baring massive, sharp teeth, like the ferocious creature in "Jurassic Park." But new research suggests that this classic image might be wrong.

A Tyrannosaurus-Rex skeleton dating back 67-million years will be auctioned in Switzerland next month, marking the first such sale in Europe, the auction house said on March 11.

The skeleton dubbed Trinity will go under the hammer in Zurich on April 18, the Koller auction house said.

A drought in Texas dried up a river flowing through Dinosaur Valley State Park, exposing tracks from giant reptiles that lived some 113 million years ago, an official said on Aug. 23.

In the study researchers conducted toxicological analysis of two individuals aged six or seven

A skeleton of a Gorgosaurus dinosaur is going up for auction for the first time and is expected to fetch between $5 million and $8 million, Sotheby's said on July 5. 

The auction house will put the specimen, which is 10 feet tall (three meters) and 22 feet long, under the hammer in New York on July 28.

The U.S. Environmental Protection Agency has proposed restrictions that would block plans for a copper and gold mine in Alaska's Bristol Bay region, the latest in a long-running dispute over efforts by developers to advance the mine in a region known for its salmon runs.

The world's biggest triceratops skeleton, known as "Big John," was sold for 6.6 million euros Oct. 21 to a private collector at a Paris auction house.

A Paris auction house will seek to sell in October the world's biggest known example of the dinosaur triceratops, known as "Big John", with the spectacular skeleton on show to the public beforehand, organizers said Aug. 31.

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