Googling “The elephant thought”:

The elephant thought that, from an elephantine view, there were basic flaws in the whole plan.

The elephant thought how much more efficient that would make him and so he asked the farmer to give him the stick.

The elephant thought that it required “Balls” to say such a thing.

The elephant thought: “There must be water there;” and climbed the mountain.

Everybody tried to run away and the elephant thought he was in danger.

but the Elephant thought this was inappropriate

The elephant thought about it for a minute and decided what the heck.

and for a moment the Elephant thought his friend the Spinning Wheel had come out to the barn to play.

One day the elephants were eating in a field when Elvis the Elephant thought of a funny joke. “Mouse!” he yelled.

Now, by repeatedly listening to the glorification of the cruelty the elephant thought that cruelty alone was the virtue.

The elephant thought, “Now what is a little monkey going to do for me?”

It appears there are quite a few sentient elephants on the web.

Searching, unrelated, for “dancing whale” on YouTube:

Monkey Dust Tap / Ballroom Dancing Whale

Some actual articles on elephantine intelligence:

Elephant intelligence: Why elephants might be as smart as humans. @ Associated Content

Elephantine intelligence @ The Nature Institue

Elephant intelligence @ Wikipedia

Original research sources can be found in the References section of the Wikipedia article.