We all love worms, but how much do you know about everyone's favourite soil organism? Do they all belong to a single family?Can you cut a worm in half to get two worms?Learn the answers to these questions and more as entomologist Dr Ian Smith demystifies another insect-like organism.Follow Ian on Twitter: @EcologianFollow the Plants Grow Here podcast on Twitter: @PlantsGrowHereTweet insects you'd like to hear about: #PGHBugsTheme music: https://www.youtube.com/watch?v=b5lVBxhSw5k