We are very used to seeing dinosaurs as fearsome attacking beasts, that we often do not stop to think what the dinosaurs were doing. They were simply being part of a food chain. Let's think of ourselves. We have to eat to live, but we have the choice of eating some parts of some plants (which we do by farming) or we can eat animals (which we do by farming). At the end of the day, every piece of meat on your plate is a slaughtered animal. Slaughtering is a work we use for killing for food. We do this as humanely as possible because we have the instruments to do it. Now let's think of a dog. A dog has the choice of eating some parts of plants or animals just as we do. When we feed it meal or 'mixer' we are feeding it baked flour, which in turn comes from cereal plants. But the dog could not do this for itself. So it would have to scavenge of hunt other animals if it were in the wild. Let's think of a cat. A cat can only eat meat. It cannot digest parts of plants, not even biscuits. So it has no choice but to hunt and kill animals. This is what cats do all day, even though we feed them at home, too. In all these cases, including ourselves, everything is part of a food chain: plant, plant-eater, meat-eater. Now on to a dinosaur. A plant-eating dinosaur can get the nourishment it needs from eating plants. It cannot get any nourishment from eating meat. So it chews away all day. A meat-eating dinosaur cannot get any nourishment from plants, so it has to eat meat, and so it has to scavenge dead carcasses or kill other dinosaurs. It has no choice because that is where it is in the food chain. Dinosaurs, dogs and cats do not have the humane ways of killing, that we do. They can only really kill with their teeth, and that is not a quick or pleasant way of killing something. But they have no choice. So there is nothing special about a dinosaur. It is no more a beast than cats, or dog, or us – it is just surviving with the tools it has – teeth.