An elephant drinking from a stream spots a tortoise lounging on the shore.
He grabs it with his trunk and flings it into the jungle.
A passing zebra asks, “Why did you do that?” ……
“Forty years ago that very tortoise nipped my tail just for fun,”
the elephant said. “Wow, forty years ago!
How did you remember that?”
“Well I have turtle recall,”
replied the elephant.