| 1 | Strong animals prey upon weaker ones. | |
| 2 | Evolution is part of nature, and nature kills. | |
| 3 | This is a dangerous and violent city. In some parts of it, the only law is the law of jungle. | |
| 4 | Sam's interest tends towards the reputedly 'ugly' and predatory side of the sea. | |
| 5 | Both documents challenge the notion of a dog-eat-dog society, where survival of the fittest reigns. |