We all have our favorite invert that's in our collection. I've had so many that it's hard to pick a specific favorite. After keeping many invertebrates, my all time favorite would be my female my ghost mantis. I could watch that thing for a long time and not get bored. Seeing her sway from side to side even made me chuckle at times. To see her catch a fly and then eat it alive was brutal, yet interesting. What is your favorite invertebrate to keep and why?