The way this puffer fish gets through shells,

They have four teeth that are fused together creating a beak- like form

https://t.co/7XZD8UxGH0 https://video.twimg.com/amplify_video/1837409306645254144/vid/avc1/720x1280/ZGZvDnChTrKmU6-P.mp4?tag=16