Dolphin Water Rings - Fer Real?

Factual Questions
1

These from YouTube:

Is this CGI or for real?

(For those unable to access YouTube the clips show dolphins playing with what appear to be “smoke rings” except made of vortices under water - looks great but surely its fake?)

Thanks

M

2

Bubble ring generators:
http://www.bubblerings.com/bubblerings/media.cfm

3

It’s for real.

4

Yeah - it’s actually surprisingly easy for dolphins to manipulate air bubbles underwater, they can produce the air bubbles themselves, and have plenty of fins, muscle power, and speed for manipulation.

From what I understand (secondhand) it works by blowing an air bubble into the vortices created by their fins, and that’s why it’s so easy for them to get a ring shape.
… oh, yeah, and a lot of time on their hands…

5

Yeah, it’s real. People consistently underestimate the intelligence of dolphins.

6

[QUOTE=WoodenTaco]
Yeah, it’s real. People consistently underestimate the intelligence of dolphins.
[/QUOTE]

And the veracity of images/video on the net.

7

Dolphins might blow bubble rings for fun, but hunchback whales do it to catch fish.

8

[QUOTE=Tapioca Dextrin]
Dolphins might blow bubble rings for fun, but hunchback whales do it to catch fish.
[/QUOTE]

How do they get the fish up to the bell tower?

9

Fer real, sez Scientific American in a very nice article a few years ago.

10

[QUOTE=wevets]
… oh, yeah, and a lot of time on their hands…
[/QUOTE]

Dolphins have hands?