Most things have an ending,

Most things don’t live forever,

Most things have a happily ever after,

 

But not me,

I can turn back time,

By reverting to an earlier stage of my life cycle,

I have two names,

 

If I’m injured,

Or threatened,

All I do is turn back time,

Turn back to an earlier stage of my life,

 

I live in the water,

I was discovered in the Mediterranean Sea, 

But have since spread worldwide,

Living in tropical waters,

 

I can sting,

But it isn’t poisonous,

Unlike my good old friend,

The Box Jellyfish,

 

I am the Immortal jellyfish (also known as the Turritopsis dohrnii).