On our spaceship the “shark” is the human crew because we eat the minnows but we have to wait for the minnows to repopulate because then we won’t have any food. the shark can never eat everything at once because then we wouldn’t have anything to eat at all and we would be stuck eating seaweed which has no protein for us to stay healthy.
Minnows would be the animals “chicken, cows, pig, fish, beans, soy, and eggs” the minnows eat the seaweed and that is how they stay alive, because we eat minnow because the minnows are, minnows eat seaweed, seaweed eats energy from sun, and minnows repopulate from the seaweed that repopulates.
Seaweed would be the plants on our spaceship in the green house room to give us oxygen.
