You have got to see this.

[White Crane Feather]

IF you have never seen this check it out I have never seen anything like this.

[Oxo1]

That's really cool, clever Dolphins.

[Imaginarynumber1]

Since it's sea world, they probably kill the ones that don't blow the bubbles and feed them to the others.

[Stubbly_Dooright]

That is really cool. And some of them are even playing with it. And, it looks like some of them are doing this to entertain the humans. They look so skilled at it.