We are all predators and prey. It’s called a food chainhey, do you sharpen axes so other people can split hairs?how did a single cell critter, give birth to a multicellular and why would that creature give birth to something that would eat it?
Cells don't give birth, they divide. One would think the simplest idea for "the first time" is that a cell divided ,as did another, and their progenies got together and functioned together.
Traveling backward back in time, each species ability to produce viable offspring with an ancestor of its line decreases, as a general rule. Should you travel back in time 10,000 years, you would probably do fine to have a baby with an "ancient human".. 100,000 years? Again, kids might usually live. 1 million years? Probably not so much.if a Mule is sterile, how are we led to believe that mutations can lead to another species that can reprodue?
While this is a general rule, you should get the idea.
why would a cell divide into predator and prey?