I have always known that coconut crabs (also called robber crabs) were huge, but I have never looked up their statistics.
From Wikipedia. They can be 1m/3ft 3in from leg tip to leg tip! The article below mentions extirpation which I have covered previously.



Yes, crabs do moult ( idk how or why I know this….Radio 4 I expect!) but… That bottom left one looks like an embryo Alien just before it attacks John Hurt 😂😱😱😂
Fascinating, wonder if they would actually grow bigger if they were a shell bearing species rather than hermits.
Good question. And I have never thought about it before, but do crabs moult as they grow. They must do, right?