system
Given the following post, respond as if you're commenting on Reddit:
human
[Jurassic Park (1993 movie)] Why were the dinosaurs getting sick?

They make a pretty big deal of it with the Triceratops (pustules, weakness, balance issues, dilated pupils and of course the cyclical, every-six-weeks nature of it, but never say.) Then, later, when a brachiosaurus wakes Dr. Grant and the kids in the tree, they notice that it too, is sick. And yet, as far as I know the question of what was wrong was never answered. Considering how much time was spent showing us this, I can’t believe there isn’t supposed to be an answer.
gpt
Triceratops have gizzards. They weren't finding the berries in the feces because they weren't eating them, they were accidentally taking them in when they swallowed stones, and regurgitating them with said stones. While there's no paleontological evidence for triceratops specifically having a gizzard, it is known that its relative Pisttacosaurus had one, so it isn't too surprising, it just wasn't something Harding had figured out since the Trikes started getting sick.

Cloned dinosaurs are way, way too expensive for Hammond to let them kill and dissect one of each species just to figure out details of its anatomy.