A progression from a simple form to a more complex one
A calculated change in position
The doctrine of evolution in its finished and definite form is a modern product.
Darwin's theory of evolution is based upon the idea of natural selection.
The origin and evolution of the Australian marsupials have been discussed by Mr B.
As such, moreover, it is a much more limited theory of evolution than the ancient.
He played a conspicuous part in the modern doctrine of evolution.