User blog comment:Kaido King of the Beasts/Chapter 810: Crucify and Chill/@comment-24850639-20151217195401/@comment-10543621-20151222051847

What is the giant elephant is an ancient Mink and can talk as well. He'd be old enough to know the events of the void century and be sort of a living poneglyph.

Regardless, the fact that this island is so old and so full of history and mystery, it's almost a given Robin should be getting some interesting info. She's due for a new poneglyph anyway.