| in Did You Know Facts
Crabs use the sounds of their pincers and claws to communicate.
![Crabs](https://assets.shortpedia.com/uploads/2022/11/30/1669795351.webp?tr=w-1200,h-600,cm-pad_resize,bg-F3F3F3)
By drumming and fluttering their pointed appendages, crabs produce sounds that can only be described as crustacean Morse code. Some crab species have a particularly big claw that is utilised for communicating.