Nature is brutal. For animals in the wild, survival is a struggle on a whole different level. The predators hunt the young of other species, or their own children starve. The prey are in constant danger, and may be suffering their own shortage of food while trying to avoid being eaten. Species killing other species is the norm. Meanwhile, we hide from death, and we use words like "beef" to forget what it is. But the real wild treats animals much worse than a fishing hook or a conscientious local farm.
