This center uses advanced graphics to display their fossils in a less static manner than conventional displays. Here we hve triceratops teeth on left and a spinosaurus tooth on right. Each is in its own small box within the display case.
At first you just see the teeth. Then a projection of a trieceratops starts walking across the front glass from right to left. As it enters the middle, a projection of a spinosaurus starts following it (as shown here). They continue walking out of the frame on left.
After that a projection covers the entire screen with a circle opening so the triceratops teeth can still be seen. The graphic describes the extinct dinosaur.
After that another projection covers the entire screen with a circle opening so the spinosaurus tooth can still be seen. The graphic describes the extinct dinosaur.
The entire progression runs on a continuous loop, so there is no need for visitors to press a button to activate it.