Page 156 - The Origin of Birds and Flight

154 The Origin of Birds and Flight

through chance mutations—which is itself impossible—that feature will
offer no advantage on its own. In the absence of an air-type lung, devel-
opment of the metabolism that provides the high levels of energy neces-
sary for flight will serve no purpose. On the contrary, the creature will
suffocate, being unable to obtain sufficient oxygen. In the event that an
air-type lung develops first, the creature will then absorb too much oxy-
gen and will again suffer as a result.
Another impossibility stems from skeletal structure: even if the bird
is in some way in possession of an air type lung plus the appropriate me-
tabolism—an impossibility—it will still offer no advantage. No matter
how strong a creature may be, it will be unable to take off without a skel-
etal structure relatively lighter than any terrestrial animal’s. As made
clear earlier, formation of wings requires a totally different and flawless
creation.
In his book Janus: A Summing Up, a criticism of the Darwinist theo-
ry of evolution, the famous author Arthur Koestler makes the following
commentt:
Equally chilling is the idea that some ancestral reptiles became trans-
formed into birds by the small, step-by-step changes caused by ran-