The World's best Elephant Joke!

This is a three part joke.

Part 1.
Q: What is the similarity between an elephant and a plum?
A: They are both purple, except for the elephant.

Part 2.
Q: What did Tarzan say when the elephants came rumbling down the jungle path?
A: Here come the elephants.

Part 3.
Q: What did Jane say when the elephants came rumbling down the jungle path?
A. Here come the plums.  (Jane was colorblind!)