Imagine that there is a large ship that is rapidly sinking at sea. There is an island with a small human city and a great deal of forest that can be reached by lifeboat. However, there is just one lifeboat left, and you must decide on which order you would place the following creatures on the lifeboat:
1. An intelligent, healthy, morally virtuous person
2. An intelligent, healthy, morally evil human
3. A healthy moose (there is an indigenous moose population on the island)
4. A collie with a permanently lame leg
5. A severely mentally disabled human
6. Ten chickens
7. A breeding pair of an endangered species of bird, once native to the island
8. A human in a coma who will almost certainly never come out
9. A breeding pair of common, but beautiful, indigenous songbirds
10. Two breeding pairs of a non-indigenous variety of rapidly breeding wild rabbits (with no known predators on the island, and an extensive food supply)
Assume that while on the lifeboat none of the potentially dangerous creatures will attack or cause any harm to the other creatures on the boat, and that all groups of creatures require an equal amount of space. (That is, one person takes up the same space as the one collie or the twelve chickens, etc.) Explain your answers.