If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight, modifications, my theory would absolutely break down.
Dangers of Darwinism Blog
Changes in Circulation at Birth
Fetal circulation demonstrates engineering complexity that requires advanced planning that Darwinian evolution cannot accomplish. The fetus survives in a fluid-filled environment (the amnion) and is busy developing a respiratory system designed for breathing air! This temporary system functions in the presence of; 1) three shunts, 2) unique fetal hemoglobin and 3) a special blood supply.
BAD NEWS FOR DARWIN-DNA MUST CODE FOR EMBRYOGENESIS
Neo-Darwinists have assiduously avoided the fact that DNA must code for all the changes that must take place in the human embryo, fetus, neonate and child that eventually produces an adult. And they should. The required information is astronomically complex and poorly understood. Its long past time evolutionary biologists address this complex issue.