Who’s More Diverse, Humans or Maize?

Source: Food and Agriculture Organization of the United Nations, 2013, Cary Fowler, Charlotte Lusty and Maria Vinje Dodson, and Global Crop Diversity Trust, "The Youth Guide to Biodiversity" 1st Edition (Chapter 3) Youth and United Nations Global Alliance. Reproduced with permission. 

Chapter 3. Verbatim.

Although humans may look diverse they are actually genetically very similar. In fact there is more diversity in a single field of maize than there is in the entire human population! Can you imagine the potential for maize to develop into many different types of crops?