If you were to wake up one day and find yourself surrounded by these amazing creatures, after first freaking out, you would probably come to the conclusion that you were on some alien world.
But in actuality these are all real organisms from earths distant past - the Cambrian period. Artists and animators have joined forces with paleontologists to produce these visualisations of the various fossils found all over the world.
It is likely planet earth will never see a period like this again, and however horrifying it may have been, that is disappointing.
I have listed the names of the arthropods in the captions of each photo.