A dolphin movie that creates a circle of air in the water and plays

A movie playing with the dolphin making air through the fumarolic hole on the head making a ring. There is a beautiful circle for dexterity to make you wonder how they are producing.

The ring keeps its shape for a long time without going to water even though it is underwater, and it has a mysterious atmosphere.

Details are as below.
Depending on the position to make the ring, it looks like an angel's ring.
YouTube - Dolphin play bubble rings


Here is a movie played by two dolphins in a bubble ring.
YouTube - Dolphins Blow Bubble Rings


Incidentally, the human bubble ring is like this. Unlike dolphins, you can not do well unless you make it for the water.
YouTube - Underwater Ring Bubbles


In Japan, the aquarium of Shimane prefecture "AQUAS"Dolphin's bubble ring seems to be seen, and even on the AQUAS siteNow you can watch moviesIt is.