Evolution is Slow

Laymen have no intuitive feel for how slow evolution is. Millions of generations pass by without any detectable change. The changes are unbelievably slow, yet because the earth is so old, the microscopic changes have had plenty of time to add up to astound. Think of the thin layers of strata that go for miles deep in the Grand Canyon. Each one represents a year’s worth of sediment.

~ Roedy (1948-02-04 age:70)