SvennoJ on 19 April 2014
Regarding this bit
You see, it takes radical changes to get a cell from goo to all the diversity of life we see today.
Changes are far more gradual than you think. Did you know that the DNA that makes us arms is the same for fins in fish.
For example http://open.salon.com/blog/avimecca/2014/04/14/the_fish_with_the_opposable_thumb
