"Baby Elephant and a Baby Turtle" joke

There once was a baby elephant and a baby turtle drinking from a river
deep in the jungle. For no reason, the turtle reaches over and bites
the elephant's tail, really hard.
Years and years later, the same elephant, now grown up, is by the same
river, having a drink with his giraffe buddy, when the same turtle that
bit him on the tail all those years ago wanders up to the river.
The elephant rears back a leg and kicks the turtle as hard as he can,
sending him flying way off into the jungle. "Why did you do that?" the
giraffe asks. "When we both were babies, that turtle bit my tail for no
reason," the elephant replied. "Wow! You must have a good memory!"
exclaimed the giraffe.
"Yep!" said the elephant. "I've got Turtle-Recall."