Start Small, Think Big sets readers on a journey of discovery, beginning with small miracles of life and connecting them to the big picture of our natural world. Little Brown Nut starts small, with a large fruit falling from the tallest tree in the Amazon rainforest. Inside is a little brown Brazil nut, surrounded by 20 others. It sits and waits for an agouti, a rodent with teeth so strong that it can free the nut from its hard casing. The story of the Brazil nut tree and the agouti is told clearly and carefully, with facts about germination, photosynthesis, seed dispersal. The narrative progresses in a way that builds understanding and the gorgeous illustrations bring the story and the science to life. Thinking big, the book shows why the rainforest is important to local people and the wider world.