PAPPAS THEORY FOR THE PREHISTORIC BIG ANIMALS

WE ARE ALL FAMILIAR WITH CHICKENS, WHICH ARE RATHER BIG BIRDS, BUT THEY DO NOT FLY. HOWEVER, THEY HAVE THE STRUCTURE OF A FLYING BIRD. ACCORDING TO DARWIN AND THE THEORY OF EVOLUTION OR ACCORDING TO CREATION OF GOD OR ACCORDING TO THE INTERFERENCE OF EXTRATERRESTRIALS, THESE BIRDS SHOULD HAVE BEEN PRACTICING FLYING IN THE PAST. WHY THEY DO NOT FLY NOW? WHY EVOLUTION OR GOD'S OR EXTRATERRESTRIALS CREATION DOES NOT WORK I OUR DAYS? SOMETHING NATURAL SHOULD HAVE HAPPENED IN THE MEAN TIME. THIS APPLIES TO ALL BIG BIRDS, LIKE PEACOCKS, PENGUINS, TURKEYS, OSTRICHES, GEESE, END OTHERS
SINCE THIS APPLIES TO ALMOST ALL BIG BIRDS, THIS FACT SHOULD BE CONNECTED TO THEIR WEIGHT. THESE BIRDS SHOULD HAVE BECOME HEAVIER NOW, BUT WHY? THIS IS NOT COMPATIBLE WITH THE EVOLUTION THEORY OR GO'S OR EXTRATERRESTRIAL'S CREATION.
THE OTHER ALTERNATIVE WE MAY THINK OF, IS THAT THE GRAVITY OF EARTH INCREASED, BECAUSE EARTH BECAME BIGGER, AS IT IS TRUE FOR ALL CELESTIAL BODIES, THE BIGGER THEY ARE, THE BIGGER IS THEIR GRAVITY.
THEREFORE, EARTH BECAME IN THE MEAN TIME BIGGER. THE ALREADY BIG BIRDS BECAME TOO BIG TO FLY, BUT SURVIVED MOSTLY WALKING, AND SOME OF THEM EXTINGUISHED, LIKE MANY VERY BIG ANIMALS, AS THE DINOSAURS AND OTHER BIG PREHISTORIC MEGATHERIA-ANIMALS.
AMONG THE BIG PREHISTORIC MEGATHERIA-ANIMALS, THE ELEPHANT SURVIVED, HAVING RELATIVELY VERY STRONG AND BIG FEET. ALSO, THE CROCODILE SURVIVED, HAVING TOO SHORT FEET, AND BECAUSE IT FLOATS MOSTLY IN THE WATER USING ITS FEET AS OARS, AND WHEN ON THE GROUND CROCODILE CRAWLS ON ITS BELLY.

SO BASED ON ALL THESE FACTS, NO COLLISION OF THE EARTH FITS WITH A BIG EXTRATERRESTRIAL BODY, BUT OUR EARTH GROWING MODEL FITS, WHICH FOR A STRANGE REASON IS NOT GENERALLY ACCEPTED, NOT EVEN DISCUSSED AS A POSSIBILITY IN UNIVERSITIES' TEXT BOOKS!