Hidden Claymation (DISC 1): At the 'Main Menu' go to 'Special/Bonus Features' and you will view a message on the screen telling you these features are available on disc 2. If you press 'Up' on your remote control you will be able to view some claymation from an old dinosaur movie set to music.
Additional Claymation (DISC 2): At the 'Main Menu' go to 'Special Features' and select 'Dinotopia Tour'. On your remote control press the 'Up' arrow key so the title 'Dinotopia' is highlighted. Then press the 'Up' arrow key to view claymation of a T-Rex battling a Triceratops.