Selective breeding is when humans choose animals or plants with specific traits to reproduce, in order to pass those traits on to future generations. This technique has been used for thousands of years to improve things like farm animals, crops, and even pets. For example, we breed dogs to have certain behaviours or looks, or we grow crops that produce more food. While selective breeding has helped us create better food and animals, it also raises some important questions about what’s right and wrong. On this website, we’ll explore what selective breeding is and how it works, but we’ll also think about the ethical problems it can cause. Are we being fair to the animals or plants we breed, especially if it leads to health problems? Is it okay to change nature in this way just to get traits we want? And what happens when we only breed animals or plants that look a certain way, for example aesthetically pleasing?