Wednesday, Dec. 31, 2008 | The Kojo Nnamdi Show

He's been described as the "Indiana Jones of Botany" and the "father of modern plant genetics." In the early 20th century, Russian botanist Nikolai Vavilov amassed a collection of 250,000 seed varieties, developing innovative theories...

He was an idiosyncratic biologist who arguably made his important scientific announcement in a British pub. A look at the life of Francis Crick -- who discovered the double helix structure of DNA and helped us better understand the...

Does your dinner table reflect your worldview? Americans of all political persuasions are thinking more about where their food comes from - whether it's grown locally or raised in a humane way. Kojo talks with the leader of the country's...