Culling is defined as the killing of animals in order to reduce population numbers. Culls can happen for various reasons, including health and disease control and prevention, or to protect other species. However, the ethics make the subject a strongly polarising one, and while culling in some cases may be necessary, it can be unclear when culling should take place, as there can be unforeseen consequences, both ecologically and economically. (With thanks to U6 Biologist Alice W for conducting the research and providing content for this podcast)