How did they know so much about the dinos?

Rating: 3/10 (10 September 1999)

This films gets worse every time I see it. The worst part of it is the fact that the scientists know so much about the dinos, even though they've been gone for so long. For example, how do the scientists know that if they don't move then the T-Rex can't see them? How could have they possibly figured that out by looking at bones? And they tell us that the raptors hunt together and use teamwork to sneak up on people. How can looking at fossils convey that sort of information?