Thinking about the early arthropods in the Cambrian seas. We know that they had a nervous system and brains from fossil evidence. Many modern arthropods have more complex brains, and there isn't anything exactly like these early simple brains. So, I wonder if you were to watch these creatures feeding and hunting would it be different from watching modern arthropods? I think it might. Could they hide? Did they get frustrated?

You ever read a book that you liked so much that you thought "if I were in prison, but I had this book I would not mind at least until I was done reading it"