ARKive is an initiative of the UK-based wildlife and educational charity, Wildscreen, whose mission is to promote the conservation of the world's biodiversity through the power of wildlife imagery. ARKive aims to produce a comprehensive wildlife guide to the natural world for those who cannot travel there by working with the world's very best wildlife environmental filmmakers, photographers, conservationists and scientists. It was launched by the iconic wildlife filmmaker and presenter, Sir David Attenborough, in 2003. The ARKive website has a range of free curriculum-linked teaching resources for 5-11 year-olds, including lesson plans, activities and worksheets for a range of primary science topics, such as nocturnal animals, adaptation, endangered species, plants and food chains. In this article, the authors describe how the ARKive resources were invaluable for Castle Primary School's enquiry into "What responsibility do we have for our planet?." ARKive helped the children learn not only about a huge range of wildlife but also the threats that they face and what is being done about it. The clear presentation of the information and the easy navigation of the site meant the children could access the information independently, with many choosing to continue their learning at home with no prompting from the teachers, asking and answering their own questions. As many teachers know, students learn best when they are relaxed and having fun. Games and activities, including mask making and quizzes, on the website also work as great lesson starters or icebreakers.