Episode Title:The Food Chain Game.Episode Description:Aviva wants to build a food web for the African savannah, so she devises a game and Martin and Chris accept her challenge. They will each start as a blade of grass and climb to the top of the food web in a game of "Food Web Fury" so Aviva can track the table during the game progress. As they play, the brothers boost their knowledge of the complex relationships between predators and prey as well as the differences between herbivores and carnivores.