Jurassic Park used a lot of animatronics. Some shots you might think are cgi (and probably would be in most modern movies) might not be.

Edit: here is a short video about the full size animatronic T. rex. https://youtu.be/fFTsYGgdR9k

It’s used thoughtfully with an awareness of the limitations of special effects. The actual movie is good and exciting so there is no attempt to use CG as a bandaid on otherwise dull action sequences, “fix it in post”.

Maybe because no one has ever seen living dinosaurs? Just a guess.

This is a unix system. I know this!