Are dinosaurs still alive?

In his book, The Trouble with Physics, Lee Smolin tells how he met some "members of a Bible college" in an airport, and they told him that they had been to Africa, in part to find evidence that dinosaurs still exist. Smolin asked why they were so hard to find, if they exist, especially since they are large, and some of them seem to have lived in herds. The response was that they hide in caves for most of the day, and are supposed to sort of pull dirt across the entrance from the inside to prevent discovery. (New York: Houghton, pp. 25-26) Smolin was illustrating a similar phenomenon in physics, that is, some claims for a particular theory "are just rationalizations." Smolin had a hard time believing this whole idea, especially the idea about the dinosaurs hiding themselves by pulling dirt across cave entrances. Smolin is a physicist, not a geologist, biologist, or paleontologist. According to him, the Bible college persons brought up the subject that led the conversation to dinosaurs.

What about dinosaurs?

I did a Google search for the words, dinosaurs, caves, Africa, and found, sure enough, several web pages that claim that dinosaurs exist there now. Most or all of these pages are by young-earth creationists, who are either attempting to discredit mainstream science by showing that dinosaurs, which supposedly became extinct more than 60 million years ago, are not extinct at all, arguing that Noah's ark carried dinosaurs on it, or both.

Just because young-earth creationists claim something is true doesn't make it false. Are those who make such claims on to something? My response is that I doubt it, but I'm not absolutely sure.

This page has a section on "dinosaurs in the Bible," which refers to Job 40:15-19, which uses the word "behemoth," in some versions. (See here for the King James translation of this passage. The New King James also uses this word, but there's a note, saying that we don't know what animal is meant.) I have done some serious study on the matter of plants in the Bible, and, for most of the names used, we don't seem to really know what plant was meant. I suspect that the same is true for "behemoth."

I was a little surprised that the page didn't refer to "leviathan," apparently another large animal, which is mentioned in four passages in the King James Bible, namely Job 41, Psalm 74:14, Psalm 104:26, and Isaiah 27:1. Leviathan is/was apparently an ocean creature of some kind.

This page cites three articles, from mainstream science journals, indicating that dinosaur soft tissue has been discovered. If so, that is remarkable, if dinosaurs have been extinct for so long. I haven't seen these articles, nor checked to see if they have been supported or discredited by further work.

OK, let's get logical, and examine various possibilities.

Dinosaurs never existed at all.
This is difficult to believe, because of the fossil evidence.

or Dinosaurs existed.

In which case, they became extinct at some time in the past . . .

If that's true, why? There are three possibilities.

1) The earth is very old, and mainstream science, which claims that dinosaurs became extinct a long time ago, is correct.
2) Dinosaurs (and presumably many other forms of prehistoric life) were destroyed before the creation events described in the six days of Genesis 1. This would be consistent with gap theory. It is probably consistent with mainstream science, also.
3) Dinosaurs were rescued from Noah's flood, but have become extinct since, probably because conditions on earth changed*.

or they didn't.

The evidence cited on the web pages proclaiming that they still live is correct, and some dinosaurs still exist. Perhaps the Loch Ness monster exists, and is one.

*Dinosaurs would have taken up a lot of room on the ark, if there were very many species of them, plus the room needed for their food. Genesis 6 says that Noah was to take a male and a female of each animal, and doesn't mention anything about eggs being brought aboard. If somehow the dinosaurs were represented by eggs, rather than young dinosaurs, where did the eggs come from? As the KJV puts it (Genesis 6:20) the animals were to "come unto thee." (to Noah) (I cleaned up some grammar in this paragraph on August 23, 2007. I also mistakenly re-published this as a draft, not a post, after that.)

Thanks for reading.