Bonobo diet of aquatic greens may hold clues to human evolution 

Observations of bonobos in the Congo basin foraging in swamps for aquatic herbs rich in iodine, a critical nutrient for brain development and higher cognitive abilities, may explain how the nutritional needs of prehistoric humans in the region were met. This is the first report of iodine consumption by a nonhuman primate.

Source: Bonobo diet of aquatic greens may hold clues to human evolution — ScienceDaily