Evolution is not a random process. You bring to mind Dawkins' words about people who reject evolution.
For example, one could even believe that we all descended from a chimp like creature, but when you get past that to evolving from a creature with no eyes,brain, arms, or legs, you just can't get there with gradualism.
Why not?
To say the siafu ants from Africa, with their highly complex society and language were the product of random mutation and natural selection will never be known, yet it is stated.
The evolution of behavior in ants is discussed in Sociobiology. You should read it. It's a classic.
A moving example of living ROM's.