In this learn node illustration you are seeing structure inside a Monarch butterfly brain. It is from a research article in PLOS Biology on what may underlie sun compass navigation, shown on this page in Figure S10. CRY2 RNA Distribution in Monarch Brain. If the circadian clock mechanism of butterfly brains seems too detailed for what you want to learn or teach now, you could find less specialized material in the latest news on Monarch Butterfly migration and Journey North. Each of these butterfly sources provides links to other good materials about these beautiful insects. So does this Wikipedia Monarch butterfly article, which includes a reference to the video below of a Monarch butterfly emerging from its chrysalis. Within the brain of the emergent baby butterfly is the RNA that science is learning will inform his flight north, guided by the sun. All of these materials are open, free, richly connected nodes in the global learning commons.
