Dolphins blowing bubble rings
 

i saw this and thought it was amazing. dolphins blowing bubbles with their blowholes, and then playing with the rings to keep them spinning.

That is simply amazing. I mean just wow, I wish I could do that.

apparently you can!

That has to be one of the coolest things I've seen in a long time. Dolphins are awesome.

I saw this last night on the TV. Very cool and totally adorable!

Well now farting in the tub just seems silly

Hory clap that's amazing

I love how it has even created its own tricks with the bubbles. Is there only one dolphin doing this or are the others there doing it as well??

I want to come back as a dolphin

They must be so bored...

I would love to try and blow bubble rings underwater, I had no idea that they could be done; I've always loved making smoke rings when I smoke hookah, this would be infinitely cooler.
Anyone know if there is a property of physics that allows for these bubbles rings? Pressure? Water tension? How does this work?