I wonder how big they were when first hatched? And how fast they grew? Hm....
I can see it now, Noah sneaking from nesting site to nesting site stealing eggs/young of T-Rex, Allosaurus, Albertosaurus, Velociraptor, etc.. That would be more of a story than sitting in a boat for 40 days.
No fair using intelligent thinking. The obvious elludes them. Has to be a full grown elephant, not a baby that's a fraction of the size and weight and doesn't require as much food or space. Sheesh, you'll be the ruination of their arguments.. :)