Steak dinners go back 2.5 million years

A woman walks down steps which feature a painted promotional design for the upcoming Earth Hour event at a bank in Hong Kong Tuesday, March 16, 2010. Earth Hour 2010 takes place on Saturday, March 27, at 8.30 pm local time and is a global call to turn off lights for 60 minutes in a bid to highlight the global climate change.

An Experimental Lancair IV-P airplane lies beached on Hilton Head Island, S.C., Tuesday, March 16, 2010, the day after its pilot made an emergency landing. The pilot, Edward Smith, and his passenger survived the crash, but a man jogging on the beach was killed when he was struck by the plane.

The hand of a restorer is seen cleaning a horse's head which is part of a statue which represents Roman Emperor Augustus on a horse, in Wiesbaden, central Germany, Tuesday, March 16, 2010. The head of the approximately 2,000 year old statue was found during excavations in the Roman town of nearby Waldgirmes and will be restored during the next two years before it will be presented in an exhibition.

People view a burning car following an explosion in Warri, Nigeria, Monday March 15, 2010. Twin car bombs exploded outside a government building where amnesty talks were underway Monday in Nigeria's restive and oil-rich region, wounding two people and causing panic, a government spokesman said. Monday's bombing is the most daring attack claimed by the Movement for the Emancipation of the Niger Delta since the group abandoned an unconditional cease-fire agreement with the government. It also may signal the end of amnesty negotiations that have fallen apart during the long illness of Nigerian president Umaru Yar'Adua, who brokered the deals before his health worsened.

A tree lies across a smashed car at a home in Wantagh, N.Y., Sunday, March 14, 2010. Strong winds and heavy rain downed trees and power lines throughout New Jersey, Pennsylvania, New York and Connecticut on Saturday, leaving hundreds of thousands of people without power.

A bear cools off from the summer heat with a frozen watermelon in Rio de Janeiro's city zoo, Friday, March 12, 2010.

Ohio State's Evan Turner (21) celebrates his last second, game-winning three-pointer with Jon Diebler, left, and David Lighty in the second half of an NCAA college basketball game in the quarterfinals of the Big Ten conference tournament in Indianapolis, Friday, March 12, 2010. Ohio State beat Michigan 69-68.

Fog shrouds a riverboat docked on the Ohio River, Friday, March 12, 2010, in Cincinnati.

A supporter of former Thai Prime Minister Thaksin Shinawatra wears a headgear designed to look like Democray Monument during a protest in Bangkok, Thailand, on Friday, March 12, 2010.The Thai capital braced for possible violence as anti-government activists launched Friday what they hope will be one of the country's biggest protests in an effort to force Prime Minister Abhisit Vejjajiva to call new elections.

Lindsey Vonn of the United States speeds down the course on her way to win an alpine ski, Women's World Cup super-G, in Garmisch-Partenkirchen, Germany, Friday, March 12, 2010. Vonn has won her third straight overall World Cup title. The American, who won the final super-G of the season Friday, also picked up titles in the downhill, the super-G and the combined events. Vonn became the first woman to win three straight overall titles since Petra Kronberger of Austria in 1990-92.