The idea that animals have rights has now become mainstream, but what does that mean in practice? Whilst cruelty to animals has long been regarded as unacceptable, is it wrong to kill animals for food, or to cause them suffering in scientific research? In this first episode, we will look at some of the issues that arise from our relationship with other animals, and how it can be unlawful to cause them unncessary suffering but at the same time treat them as mere commodities.