Dr. Alan Grant: What John Hammond and InGen did at Jurassic Park is create genetically engineered theme park monsters. Nothing more and nothing less.
Woman: Um, are you saying that you wouldn't wanna get onto Isla Sarnoa and study them if you had the chance?
Dr. Grant: No force on Earth or Heaven will get me on that island.
After the aeroplane crashed, a dinosaur stepped over it and the windows shattered making the typical sound of made-of-glass things when broken. They are made of plexiglass (a sort of fibrous plastic).