Very thoughtful re: the dinosaurs. I have heard some folks suggest that the animals brought onto the ark were not necessarily adults, so that would give the ark more room to store animals. Also, after the flood, there was so little vegetation that the dinosaurs brought onto the ark might have perished from lack of food, since they needed more to eat if they were truly larger. After the flood is where we find the first time that God permits man to consume animal flesh, even though most of the world was probably eating it long before the flood, and suffering the consequences as a result. After the flood, you see man's lifespan steadily decreasing in several generations.