These resources are free to download. The document is about Extinction and covers what it is, why it matters, keystone species and sustainability. It has 6 class activities. There is also a slideshow showing 7 extinct species. This is one of many teacher resources available on our website to go along with our dramatised adventure audiobook - Lost on Infinity. Join us on our regular Podcast - Stories, Science & Secrets - where Steve Punt, Matthew and Elaine Sweetapple discuss the science behind our stories, such as biomimicry and extinction. Includes interviews with experts from the Natural History Museum and Biomimicry organisations.