When colleagues and I found microplastics in hedgehog droppings, we wanted to know where they were coming from. One answer was surprisingly close to home: pet food. The story began in 2021, when we collected 189 hedgehog faeces samples from residential gardens and rehabilitation centres across the UK. We found plastic in 19% of them. Despite being one of Britain's best-loved wild animals, and now officially listed as "near threatened" , no one knew hedgehogs were ingesting microplastics. To