"I think his point is paulie , that if evolution is actually as evo defines it , as changes made by way of random mutations , then why does n't life reflect those random mutations ? For example , why have n't a large number of lower animals who live their lives being hunted by carnivores adapted eyes in the back of their heads as a needed early warning system to see their stalkers coming from behind them ? Especially in times of drought and famine when food is scarce ? The environmental pressure exists at those times to justify such a change , yet from fish to birds to reptiles to mammals to even insects , most every creature in creation has 2 eyes , 1 mouth , 2 ears , ( if they even have ears since some animals use vibration sensors to locate the movement of prey and predator . ) It makes sense that Eagles , Hawks and Falcons have only 2 eyes since they are apex predators which rule their skies . But they regularly swoop down on smaller birds and pluck them out of the sky for food for their young . So why have n't smaller birds found the need to evolve eyes in the back of their heads ?"
"They have . Prey animals have their eyes to the sides of their heads which allows them to see in every direction , almost 360 degrees around . Predator animals have their both eyes facing forward ."
"why does n't life reflect those random mutations ?"
"They have ."