If you come looking for paleo media you may feel a disappointment. The prehistoric fauna designs an be described as mediocre at best. The Allosaurus is basically the same design as the one from battle at big rock and the terror birds are given no specific genus (Phurosrhacos, Kelenken, Titanis,etc). However they are depicted as animals and not mindless monsters. The modern day fauna footage is also very impressive. But still, I would not recommend it as a paleo documentary but instead as a regular one.