Pterosaur

It reproduces the iconic features of pterosaurs — the elongated fourth finger bones, combined with the forearm bones and upper arm bones to form a complete wing bone framework, clearly demonstrating the structural logic of the wing membrane attached to the bones. It restores the hollow bone structure evolved by pterosaurs to reduce weight; at the same time, it conforms to the typical fossil characteristics of pterosaurs such as the skull, trunk vertebrae, and short tail. It adopts integrally formed built-in joints: the wing bones can be flexibly expanded / folded to simulate the movements of pterosaurs spreading their wings when flying and folding their wings when perching; the trunk vertebrae can be slightly twisted, and the hind limb bone joints can be bent to restore the postures of pterosaurs climbing and walking. The joints and bones are seamlessly integrated, which not only retains the structural integrity of the pterosaur bones but also stably supports different dynamic poses wi