Bone whistle is made of a piece of bird's bone tube, with a hole on one side, and some bone tube has a movable limb bone inserted into it to adjust the tone. A large number of wild animal remains were unearthed from the Hemudu site, most of which are deer animals, with more than 400 antlers alone. It can be seen that people at that time mainly hunted deer. The Hemudu clan is rich in deer, which...