How we cite our quotes: All quotations are from Jurassic Park.
Quote #1
DR. ALAN GRANT: Maybe dinosaurs have more in common with present-day birds than they did with reptiles.
Jurassic Park suggested that dinosaurs were related to birds, but it still portrayed dinosaurs as scaly, giant lizards. Today it is believed that dinosaurs may have had feathers, like birds (source).
Quote #2
DR. ALAN GRANT: We could just tear up the rule book on cold-bloodedness. It doesn't apply. They're totally wrong. This is a warm-blooded creature.
Scientists today still argue over whether or not dinosaurs are warm-blooded, cold-blooded, or somewhere in between (source).
Quote #3
JOHN HAMMOND (on video): It's all part of the miracle of cloning.
Jurassic Park talked about cloning in 1993 as if it was no big deal, but it wasn't until 1996 that science cloned its first mammal: Dolly the Sheep, which lived almost seven years.
Quote #4
MR. DNA: A DNA strand like me is a blueprint for building a living thing.
Mr. DNA makes learning about science fun. Considering everything that goes wrong, though, we're surprised no one is devoured by an out-of-control cartoon DNA strand.
Quote #5
MR. DNA: A hundred million years ago, there were mosquitoes just like today. […] Sometimes, after biting a dinosaur, the mosquito would land on the branch of a tree, and get stuck in the sap.
People take Jurassic Park seriously and have confirmed that extracting dino DNA from mosquitoes is impossible. On top of that, someone checked out the mosquito in the movie and realized that it's a species of mosquito that doesn't suck blood. While it's sad we can't recreate dinosaurs that way, a mosquito that doesn't suck blood is officially our favorite mosquito.
Quote #6
MR. DNA: Since it's so old, it's full of holes. [...] Thinking machine super-computers and gene-sequencers break down the strand in minutes. And virtual-reality displays show our geneticists the gaps in the DNA sequence. We used the complete DNA of a frog to fill in the holes and complete the code.
The frog DNA turns out to be like fixing a leak in a dam with scotch tape. Just as scotch tape wouldn't hold the water in, the frog DNA causes cracks in the genetic code that eventually allow the dinosaurs to change sex and breed.
Quote #7
DR. ALAN GRANT: Keep absolutely still. Its vision is based on movement.
Wrong, Dr. Grant. In the book, Michael Crichton says that the frog DNA hindered the dinosaurs' vision, but Spielberg left out the critical detail, making Dr. Grant seem like an idiot and leaving his T. rex wishing he had bifocals.