I see restorations of arthropleura fly around the internet sometimes with “FUUUUCK THAT!!! ALL ABOARD THE NOPE TRAIN!!!” and just feel it’s worth pointing out that even today’s lighter, tinier millipedes move at a turtle-like pace and this one would have had to be even more easygoing due to its weight. It likely couldn’t have even lifted its front off the ground without something to prop up on, and the only thing we’ve ever found in its fossilized gut is plant pollen.
A single modern rat would have been able to kill a full grown Arthropleura by sitting on top of it and chewing a hole in its exoskeleton. It would have no defense against that whatsoever and that is in fact how even the smallest rodents can decimate populations of the modern coconut crab or giant weta.
Having an arthropleura in your house would probably be like having a very long and sleepy roomba.
