When a Japanese spider crab goes through a growth spurt, it can get a little cramped inside that shell, so it will molt (or shed) its old one before revealing something shiny and new. It’d be just like outgrowing your pants and needing a larger size (if your pants were acting as your protective suit of armor, of course) | SeaWorld

28K views · 817 reactions | This incredible footage shows a giant spider crab shedding his old shell! | storyful | Facebook

80K views · 796 reactions | Meet the Japanese spider crab, a gentle giant of the deep with a 12-foot leg span. | The History Archives | Facebook