This year marks the 200th anniversary of the birth of Charles Darwin and 150th anniversary of the publication of The Origin of Species. The World's Carol Hills tells us about a group of Darwin devotees who are honoring him by taking a trip around the world.

Our daily geography quiz.

Anchor Marco Werman talks with author Azar Nafisi about her new memoir about growing up in Iran.

The Obama Administration wants to start a new chapter in relations between the US and Iran and overcome 30 years of hostility. The World's Jeb Sharp reports.

Anchor Marco Werman speaks with Israeli writer and journalist Yossi Klein Halevi. He says many Israelis believe Israeli forces should have gone further in Gaza and toppled Hamas.

The World's Quil Lawrence reports on how the residents of Gaza are trying to re-building their lives under a shaky ceasefire between Hamas and Israel.

Argentina and Uruguay have agreed to share their claim as home to the tango. Anchor Marco Werman has details.

The World's Gerry Hadden reports on why European labor unions have been relatively silent as jobs disappear. Part of the reason is the globalized nature of the current recession.

Businesses across the globe continue to lay off workers this winter in response to worldwide economic crisis. But not everyone will be left out in the cold. Anchor Marco Werman speaks with Adrian Wooldridge, Washington Bureau Chief of The Economist, to find out which countries have safety nets for the unemployed and which don't.

As President Obama urges Congress to swiftly approve an economic stimulus package, China is already implementing its own version. The Chinese government is hoping to make up for sagging exports by encouraging its 700 million rural citizens to spend. The World's Mary Kay Magistad reports.