An unusual video has emerged of a woman swimming with jellyfish in Indonesia earlier this month.

The filmer explained online: "Due to geological evolution millions years ago got trapped in this lake with no predators and that is why they don’t need to sting anymore."

Imagine how the world look like if only jellyfish survived.

There are extremely resistant, so some of the scientists believe that if the world changed, the jellyfish will still be on the planet. Its hard for people to observe those creatures, but you can do it in Indonesia. In Tomini bay in the hard of Indonesian island Sulawesi is a small archipelago Togean islands. Close to the sea strand is a small salt water lake where jellyfish are stingless. Due to geological evolution millions years ago got trapped in this lake with no predators and that is why they don’t need to sting anymore.
There is one more Jellyfish lake in Palau in Pacific ocean, but compare to that its not that well known.