Crewdroog: ok here is how the joke goes :) and I'm so glad you said this one 'cause it's a favorite and I forgot about it
What did Tarzan say when he saw a herd of elephants running through the jungle?
Look! A herd of elephants!
What did Tarzan say when he saw a herd of elephants with sunglasses on running through the jungle?
Nothing! he didn't recognize them.
What did Tarzan say when he saw a herd of giraffes with sunglasses on running through the jungle?
You won't fool me again, elephants!
Awesome. I don't think I knew the giraffe part.
What's green and has four legs and will kill you if it jumps on you from out of a tree?