@Romeo Fabulini,
Quote:Is there any fossil evidence of early "prototype" birds that didn't quite make it into the air because of a design flaw?
Same with any other early animal, it's as if they suddenly appeared on earth fully functioning and ready to go, so where are the fossils of the ones that didn't make it?
There is this...
Consider how close anything comes to any sort of a lizard-to-bird process in real life. A coelurosaur trying to evolve its way to being a flying bird would need roughly a dozen systems which it does not have.
Nonetheless, chickens have all of those things and you might wonder what keeps chickens from ever completely regaining normal flight capabilities. The basic answer is that the chicken as we know it started out as a little two-pound jungle fowl (related to pheasants) and was bred into a 6-lb. meat animal, but still has the 2-lb bird’s wings. Geese are as heavy as chickens and fly easily enough because they have the wings necessary for a 7-lb bird.
Consider that man raises chickens in gigantic abundance, and that chickens were never kept in cages until recent times. Consider the numbers of such chickens which must have escaped in all of recorded history...
Look in the sky overhead: where are all of their wild-living descendants?? Why are there no wild chickens in the skies above us???
In other words, if there's any chance whatsoever of a non-flying creature evolving into a flying bird, then surely the escaped chicken, close as it is, could RE-EVOLVE back into being a flying bird. They're only missing the tiniest fraction of whatever is involved.
They've got wings, tails, and flight feathers, the system for pivoting flight feathers, the light bone structure, flow-through lungs, high-efficiency heart, beaks, and the whole nine yards. In their domestic state, they can fly albeit badly; they are entirely similar to what you might expect of an evolutionist's proto-bird, in the final stage of evolving into a flight-worthy condition.
According to evolutionist dogma, at least a few of these should very quickly finish evolving back into something like a normal flying bird, once having escaped, and then the progeny of those few should very quickly fill the skies.
But the sky holds no wild chickens. In real life, against real settings, real predators, real conditions, the imperfect flight features do not suffice to save them.
In real life, if you ever lose the tiniest part of some complex trait or capability, you will never get it back. In the real world, if you lack the tiniest part of some complex trait or capability, then, other than possibly via some genetic engineering process, you will never get it.
The basic question is: How in hell is some velociraptor supposed to make it the thousand miles, if history proves that a creature which amounts to the final stage of such a development cannot make it the final yard of such a process?