This millipede was caught in Fresno California. They don't seem to mind being picked up gently. I caught five of these and they mated in my tank above ground with no shame. There is one in my tank that is a bit bigger than this one but I think this is normally the full size. I almost felt bad for the one it mated with it was so much bigger. This one is roughly four inches or so long by visual estimation. There is a lot of babies and they are growing fast. I would be willing to trade some babies for other pet insects. The way I keep mine are in a tall container with hard wood logs vertically buried in a mixture of Organic soil, hard wood sawdust, calcium sand, crushed hardwood leaves and a thick layer of dry hardwood leaves on top. I keep it lightly watered and occasionally put in fruit and vegie scraps. They will eat out of your hand and you can feel them scrape your hand lightly seeing if you are food but it does not hurt at all. The only one that ever excreted was the extra big one that doesn't come out much. Maybe this is how he got extra big. I wash my hands before and after just incase. So far I would say banana and pumpkin are their favorite foods. Mine live with isopods from the backyard. I have seen one of these being eaten by a very long very skinny red centipede in the wild. In the coastal mountains near here I've seen another millipede I want but they are hard to find. If anyone has info I'd appreciate it. It is white and very long. It is easily mistaken for a centipede at first. Any comments, info or questions welcome.