What's invisible and smells like worms?
Bird farts.
Did you hear about the two silk worms in a race?
It ended in a tie.
What happens when fish start an addiction to worms?
They get hooked.
How can you tell if you are looking at a police glow worm? it has a blue light.
How can you tell which end of a worm is which? Tickle it in the middle and see which end laughs.
Why is earth worm humor offensive?
They only know dirty jokes.
What did the worm say to the other when he was late home? Where in earth have you been.
How do worms measure their length?
They ask a tape worm to help out!