Bet it's wrapping itself around....kinda following the how to cook an omlet....the edges come up and the raw egg slips underneath.
So as it melts....it's building underneath. So simple....(and they were surprised?)
But, but....the oceans are rising at an uncontrollable rate.....and we're all gonna die!!
I worked for a guy about 10 years ago that said he'd never even consider moving to coastal Florida or any other low-lying area because he was dead certain that the oceans would massively rise and flood the coastlines within our lifetimes. He probably still believes it. LOL