The story of Crabos X

 The story of Crabos X isn't very normal. A long time ago, Crabos I, II, III, V, VI, VII, VIII, IX and XI exploded. 

The inhabitants of most of the Crabos planets died, only leaving Crabos X. But what happened to Crabos IV? It's not destroyed!

So Crabos IV is still a planet? Yes, it's still a planet! Crabos X and IV are very far away. They have inhabitants. Some are crab-like, some are more like owls (vowls).