Page 229 - A Definitive Reply to Evolutionist Propagand‪a

HARUN YAHYA

from a dinosaur hand that has only digits one, two and three? That
would be almost impossible." … 2
Another well-known bird expert who opposes the dino-bird
theory is Larry Martin of Kansas University, who states that the the-
ory has no consistent, defensible element at all:
To tell you the truth, if I had to support the dinosaur origin of birds
with those characters, I'd be embarrassed every time I had to get up
and talk about it. 3

Physiology

Dinosaurs are members of the reptile family. When birds and
reptiles are examined it can be seen that their physiologies are very
different. First and foremost, birds are warm-blooded and reptiles
cold-blooded. The cold-blooded reptile metabolism works slowly.
Birds, on the other hand, consume a great deal of energy in a tiring
activity such as flying. Their metabolisms are much faster than
those of reptiles. Birds have to carry oxygen to their cells very
quickly, which is why they are equipped with a special respiratory
system. Air travels in only one direction in their lungs, thus not de-
laying the organism's supply of oxygen. In reptiles, on the other
hand, the air taken into the body leaves it by the same channels.
Unidirectional flow is found only in the bird lung, and is a unique
design. It is impossible for such a complex structure to have come
about in stages. That is because this unidirectional flow system and
the lung itself need to exist in perfect form at all times in order for
the creature to survive. Michael Denton, a biologist known for his
criticisms of Darwinism, has this to say on the subject:
Just how such a different respiratory system could have evolved
gradually from the standard vertebrate design without some sort of
direction is, again, very difficult to envisage, especially bearing in
mind that the maintenance of respiratory function is absolutely
vital to the life of the organism. 4

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