According to the video released by Sister Rabbit, the dinosaur lying under the cliff does not exist, because it became extinct about 65 million years ago. Cliff refers to a high and steep cliff, which is usually inaccessible and dangerous. So dinosaurs are even less likely to lie under the cliff.

Sister Rabbit's educational cartoons are specially designed to cultivate children's good habits and help them correct their own shortcomings. "Sister Rabbit Play House" is a series of early education videos broadcast in animation.