What's the Deal with Asian Jumping Worms

​https://blog.nature.org/science/2016/10/31/jumping-worm-the-creepy-damaging-invasive-you-dont-know/

​Asian jumping worms are on the move, but are they in Pennsylvania?  Did they hitch a ride?  Find out where they would be coming from, learn more about their life cycle, and why they're so invasive.