Non DNA Lifefroms

Thinking about sci-fi and all of the lifeforms looking like humans.

Well what if some lifeforms didn’t grow fingers and toes, and wings all of those.

Is it possible that Earth has reached the max variation of DNA possibilities, that no-new attribute (such as feathers wings nails claws etc.) can be created.
Is there nothing original under the sun?
Are all videogame, TV and sci-fi tropes done to death?

Well let me tell you no there is a New Hope.
What if there were non-DNA lifeforms…

What if through some sort of magnetic resonance cascade flux, there was energy stored as information, and this energy information was non RNA DNA. What if there were energy based lifeforms? Or even light-based lifeforms?

We definitely have to be consider the possibility that life originating elsewhere in the universe could be radically different than the vast majority of life on earth. The [size=125]extremophiles[/size] on earth force us to rethink the necessary conditions and forms of life.

Hmm I wonder if there are any organisms that thrive on gamma radiation.

en.wikipedia.org/wiki/Radiotrophic_fungus question is how did it get there, and what fungus did they evolve from?