I went to the Answers in Genesis Creation Museum

[Kitsa]

I was thinking maybe they started out small, as herbivores, before Eve fucked up. After that, when God said, "Oh, screw it, eat whatever you want", they got some meat on their bones and got huge.

I was a little confused about that whole herbivore/carnivore delineation because it seems as if that would have made them a little difficult for Noah to handle. I had this vivid mental imagery of Utahraptors and Velociraptors tear-assing around and ripping up the other occupants of, you know, Jurassic Ark.