Grasses form the fundamental link in most food chains and are spread across all continents with more than 10,000 different species. Grasses are the main food source of all herbivores from tiny caterpillars to mammoth elephants. Grasses also constitute the largest component of human diet worldwide. Grasses provide all of our cereal crops such as wheat, rice, corn and barley. Most of the world’s sugar is derived from sugarcane, a grass. Can you spot the different types of grass like Thysanolaena maxima (tiger grass) or Citronella in this section?