What if all life evolved from a common ancestor by means of gradual changes as Darwin suggested? What evidence would we expect to find?

BBC News reported today that Cambridge University in England has launched a new website containing a comprehensive library

According to evolution, life has been on Earth for billions of years. It is common to claim that life originated some three to four billion years ago.

The creation model continues to take shape as contributions from various scientific fields are analyzed from a more rewarding non-Darwinian perspective.