The Dungeon and Tower of Natural Selection are located at the deepest and highest point of Earth.

The dungeon is situated in the depths of the Mariana Trench, while the tower lies beyond the cloud kingdoms of the Himalayas on Mount Everest.

Each of these ancient structures possesses a hundred floors, with the last floor connected to each other by the earth's core.

Some would say that the two fortresses are actually one, and has two entrances, One in the Mariana trench and the other on Mount Everest.

So that the terrestrial and marine animals would not meet until they are worthy to reach the final floor, and if there was only a single entrance, both the races would have a hard time only to reach the doors.

On the final floor, once the victorious emerges, they will be given many choices. The three main choices, and in which one of them is what most seek, are as follows;

The continuous survival of their own species against anything this world could throw at them, and the bestowing upon them as the 'fittest' among the 'survival of the fittest'.

And for them to reach the goal, they would need to evolve.

As for them to achieve that, they would be given the right to receive ancient power from Gaia, The 'Mother of Nature' itself, Destroying the balance of nature slowly in the process.

Consequently, they would be the sole remaining species who would be given the responsibility to lead the world onwards.

But they will not die out, and the population of the world would be filled with their descendants.

And the 'restoring' of the world to its former self would begin.

The world is coming to an end, Global warming and human intervention are the two main causes.

This is the tale of a Vaquita [A type of porpoise] as he embarks on a perilous journey; starting from his home in the Gulf of Mexico, through the depths of the pacific ocean, the wilderness of the Atlantic, encountering allies from other kingdoms, meeting his destined love, fighting off pirates and enemies, and finally reaching the entrance in the Mariana Trench,

thus his struggle to save all species on planet Earth from the greedy hands of egoistic species who only think of saving themselves...

... Begins...