Originally Posted by Matt 26z

Not every sub-type would have been on the boat. In theory, only the original animals would have been brought on and afterwards they would breed all of the various types once again. Read the part marked "Were Dinosaurs on the Ark?" here...

http://www.wyattnewsletters.com/noahark/na43.htm


This page is also quite interesting. It deals with how the dinosaurs could have evolved into such huge animals. Also touches on the earth's climate at the time.

http://www.wyattnewsletters.com/noahark/na44.htm

If you don't want to read all that, the theory is that it never rained as we know rain today prior to the flood. There was just a mist. This would also account for the huge lifespans of humans and animals as it would have provided an extra layer of protection around the earth. Then there was some sort of sudden climate change, and the mist turned into occational rain. This would also explain the flood... The earth's atmosphere suddenly emptying all that water.

Just something to ponder.