Paleontologists on Wednesday unveiled a new dinosaur discovered in the U.S. that proves giant tyrant dinosaurs like the Tyrannosaurus rex were around 10 million years earlier than previously believed.

A full skeletal replica of the carnivore — the equivalent of the great uncle of the T. rex — was on display at the Natural History Museum of Utah alongside a 3-D model of the head and a large painted mural of the dinosaur roaming a shoreline.

Christie's auction house in New York says Pablo Picasso's model of his famed Chicago sculpture didn't sell at auction after bids failed to meet a minimum reserve.

Authorities had hoped the sheet metal model would bring between $25 million and $35 million when it went up for auction Monday in New York.

Twitter has set a price of $26 per share for its initial public offering, which means the company's stock can begin trading Thursday on the New York Stock Exchange in the most highly anticipated IPO since Facebook's 2012 debut.

The price values Twitter at more than $18 billion based on its outstanding stock, options and restricted stock that'll be available after the IPO. That's more than Macy's, which has a market capitalization of $17 billion, and Bed Bath & Beyond, which is around $16 billion.

A prison official says Pakistan has freed former President Pervez Musharraf from house arrest after he received bail earlier this week.

Wajad Ali says prison officials were withdrawn on Wednesday night from Musharraf's home on the outskirts of Islamabad.

They work hard, sniffing out crime with only the occasional pat on the nose in gratitude.

But police dogs deserve better, according to the police and crime commissioner in the English county of Nottinghamshire, who wants to reward them with "pensions" on retirement.

Wool's wool is missing.

Police in southwest England appealed for help Tuesday in tracking down thieves who made off with 160 sheep from a field near the village of Wool.

Miami's LeBron James scored a season-high 35 points to lead the Heat to a 104-95 win over Toronto on Tuesday, and joined an exclusive club by passing yet another personal milestone.

Among other games, Indiana beat Detroit to remain the NBA's only unbeaten team, Dallas had seven players in double figures as the Mavericks beat the Los Angeles Lakers, and Charlotte held on to beat a fast-finishing New York.

Australia goalkeeper Mark Schwarzer announced his retirement from international football Wednesday after a 20-year career that included two World Cups.

Football Federation Australia said 41-year-old Schwarzer notified it of his decision after initially being included in new national coach Ange Postecoglou's squad for a friendly against Costa Rica in Sydney on November 19.

Olympic swimmer Ryan Lochte has been sidelined after an encounter with an enthusiastic fan.

The five-time Olympic champion tore a ligament and sprained another in his left knee last weekend during a visit to Gainesville, Florida.

Roger Federer had never lost his opening match at the ATP World Tour Finals since the elite tournament moved to London in 2009. That's all changed now.

On the back of a chaotic and disappointing season, the former World No. 1 tasted defeat for the second time in less than a week against defending champion Novak Djokovic 6-4, 6-7 (2), 6-2 on Tuesday.