As have I. Job describes a behemoth as eating grass like an ox and drinking up the Jordan, which seems to leave out a whole host of meat-eating dinosaurs. A leviathan seems to be limited to the sea. So how do you really know that Job wasn't talking about elephants and whales?
Read the description of the Behemoths tail, and then look at a picture of an elephants rump. Also, I don't really "know". I specifically used the word "believe" in my original post very consciously on purpose.
None of us were there so none of us really KNOW anything beyond our own lifespan. ;)
Just a thought...
Objects in a gravitational field of a black hole experience a slowing down of time, that is called time dilation.