I would like to explain this is not a debate in the real world about science, over faith,
Science we conventionally know it does not exist in Equistria.
This is a fact with in the structure of the show.
I'm taking my time to spell this out, so that can sink in.

Also British ninja can be found here, i got his permission to do that joke
https://www.youtube.com/channel/UChnsc8YLvMZr5M2kdaKdiLA

Thumb nail found on DA http://jowybean.deviantart.com/gallery/