Rooting out hunger in Africa -- and making Darwin proud

Cassava outgrowers set out their products in Kisarawe Coast Region in Tanzania. The crop might be a solution to hunger in Africa. File Poto

The "magic" cassava roots the Nigerian farmer pointed to might have made Charles Darwin smile -- and they may also turn out to be part of the solution to hunger across swathes of Africa.

"If you uproot it, you can see six or seven tubers," said Bashir Adeyinka Adesiyan, a farmer from southwestern Nigeria, the world's largest producer of cassava. "The one we were planting before, you would only get two or three."