Kentrosaurus, Stegosaurus and Ankylosaurus are exceptions because I want them to. In return, large herbivores will tolerate Raptors (as well as Dilophosaurs) around, since the tiny carnivores don't threaten them. They will still hunt quarry larger than themselves, but anything larger than Kentrosaurus is out of their size range. Raptors will no longer attack absurdly titanic animals. A large animal's weight is distributed between the feet already on the ground before the foot in the air lands, otherwise it would break it's legs in the impact. Dinosaurs no longer shake the ground when walking. An 8-ton T.rex will have 800 health and a ProtectMod of 0.1, and a 16-ton Camarasaurus will have 800 health and a ProtectMod of 0.05. The health of a dinosaur is proportional to it's weight in kilograms. An 8-ton T.rex and a 60kg Deinonychus definitely don't eat similar amounts, as don't a 200kg Dryosaurus and a 35-ton Brachiosaurus. The amount of food a dinosaur needs will be proportional to it's size. Dinosaur sleep will now be shorter (not really realistic, just a pet peeve of mine). They can still eat, but it won't satisfy their hunger, only paleo trees and the feeders will. Modern trees and grass aren't a healthy food source for dinosaurs.
Dinosaurs aren't mammals, they will only eat when hungry. Small carnivores will no longer rampage, and large ones will have a much shorter rampage time. Some herbivores will form massive herds, while others will prefer small groups or even loneliness. (I would've made them 100% real dromaeosaurs, but then they'd be lacking in food sources, so instead I went with a ''realistic JP Raptor'' design, hence their sociality) Raptors are social and slightly more coordinated (''smarter'') when hunting. Allosaurus and Carcharodontosaurus will occasionally hang around others of their kind.
Humans and cows can now survive a single pounce from a Velociraptor, and can also run pretty quickly. Dinosaur speeds more balanced, except for poor Brachiosaurus, who doesn't have running animations.
What does it do? Well, changes are as follows:
A mod I made over at JPLegacy, but felt like I should post here as well,combining mostly modifications of my own with a couple that had been previously done by others.