Dolphin/People Illusion

So I was browsing the net and I found this really cool illusion of People/Dolphins.

What do you see?

Personally, I saw people first and after about 20 seconds I saw the dolphins. But I had to really look for it.

I created a cheat to see. If you’d like to see it, look on.

First the people:

Second, the Dolphins:

The Dolphins are te “shadows” between the people.

Some say they see more then 9 dolphins. How many do you see???