The cosmic entity known as Saarkinoro is believed to be billions of years old.

 

It travels the universe in search of sources of meat.  Once meaty life is found, Saarkinoro will unload thousands of its children upon the planet.

 

These creatures, simply called Orbs, are tiny compared to Saarkinoro, but they most often become the top of the food chain on any planet they invade.  Saarkinoro will then float away in search of new planets with life.

 

About 80 million years ago, Saarkinoro stumbled upon Earth and unleashed many of its children.  Unfortunately, the planet was inhabited by apex predators known as dinosaurs, and most of Saarkinoro's children did not survive long.

 

Those Orbs that did survive, multiplied and become more intelligent over the generations.  Eventually, humans would come to be and the Orbs would enjoy preying upon these mammals