Vertical Evolution

 

As in eons past for eons hence,

Cells must always bathe in liquids dense,

For gases cannot them sustain

Be they single or be they twain.

Thus to forsake the liquid ocean

They had to organize with caution

Into convenient bags of liquid soup

Classified: The Terrestrial Group!

 

As in eons past for eons hence,

Humans must always breathe gases dense,

For vacuum cannot them sustain

Be they single or be they twain.

Thus to forsake the gaseous ocean

They have to socialize with caution

Into huge spaceships of gaseous soup

Classified: The Galactic Group!