The scene where they find the Triceratops.... my favorite dinosaur is a Triceratops and to just see it breathing and moving.
This sounds strange, but I second it. For many nostalgic dinosaur-lovers who watched this film as children, the opportunity to see your favourite dinosaur, something that existed only in dreams and bed-time stories, moving and living and breathing in all the ways you believed it to. That, ladies and gentlemen, is heartwarming.
Dr. Grant puts it into words perfectly in that very scene, too.
Dr. Grant: They were always my favorite when I was a kid. Now, I see her and she's the most beautiful thing I've ever seen.
You know that Muldoon is loyal to Hammond when he asks him to try to find his grandchildren in the T. rex Paddock.
Hammond himself, when he finds out the phones are working, but hears the gunshots. He calls the chopper and personally drives Ian to the visitors center, not caring for a second that there's dinosaurs on a rampage between the bunker and center; just so he could rescue Grant, Sattler, and his grandchildren.
And the last moment on the island, when Hammond takes one last look back and Grant almost seems to comfort him.
When Alan climbs up the tree to get Tim, Tim has the all-too-real childlike fear about getting in trouble for throwing up in the car. Alan patiently comforts him and tells him he won't tell anyone that he threw up and nervously eyes the creaking branches.
Grant and the kids' interactions with the Brachiosaurus.
The dinosaur eggs Grant and the kids found, and the babies little footprints going away.
"Malcolm was right. Life found the way."
Jurassic Park II
Stegosaurus is this troper's favorite dinosaur and the moment I saw it on the big screen alive and moving as a kid I felt my heart moving non-stop in utter awe and amazement.
The fact that the baby actually allowed Sarah to get up close and interact with it. Well, until it got scared by her camera, anyways.
Not to mention the ending, where a herd of Stegosaurus are migrating together with their young.
Despite the fact that it later led to disaster, Nick freeing and later helping to heal the injured baby T. rex counts.
It's also a nice contrast between himself and Tembo. While Tembo was very competent, it was still very cruel of him to first injure the infant, then use it as bait so he could kill it's parent.
The second film has the T. rex helping its kid get its first kill. See it here. It's so adorable that you almost forget about the Asshole Victim they're snacking on.
And later the entire Tyranno family is seen happily minding their own business back on the island.
Jurassic Park III
Grant's scene with Billy at the end of the film. Earlier, Grant had chewed his assistant out severely after his curiosity provoked him to take a few raptor eggs. Afterwards, it looked like Billy had died saving Eric from the ''Pteranodons'', and Grant couldn't help remembering the harsh last words he said to him. Against expectations, he gets a chance to make up.
The plot of Amanda and Paul desperately trying to find their son and protect him until they get off the island.
Ellie called in the marines, after nothing but a garbled call for help from Alan.
In the second book, Levine tends to come off as a spoiled, whiny asshole, but there are times when his heart of gold shows through. He seems to have developed almost paternal feelings towards Kelly and Arby; he tries to shield them from the sight of Howard King being eaten by Velociraptors, and after Eddie is killed and Arby dragged away by the raptors, his first instinct is not to flee for his own life, but to get weapons from Thorne and kill every one of them.