1.   How could such a creature have ever evolved all these highly integrated facets of its being in purely random steps?

2.   Along with swamps and bogs, tide pools are considered to be the primordial pots where sea creatures evolved into land dwellers.

3.   Creatures did evolve from the sea, but they also returned.

4.   In those years, the creatures have gradually evolved longer life spans.

5.   Similar creatures may have evolved to live on hydrothermal springs on Mars, according to Malcolm Walter of Macquarie University, Australia.