Fossils.
With all due respect, this simply does not make any sense. If there is that much trial and error and it takes millions of years for something to evolve then, we would have never made this far. Take the human for example, after all the trial and error lets say something magically evolved in to a human. Did this thing or these things magically know to become male and female? And let's imagine the answer is yes, then if there was so much trial and error to get the 9 months correct then the first 2 humans died. How were they replaced? Trial and error simply makes no sense.
It makes perfect sense, and you apparently understand neither the process nor the evidence.
It doesn't necessarily take millions of years for something to evolve. Rate of change depends on different factors. It can be "relatively" fast in some circumstances.
There's no magic to evolution. It's a natural series of steps involving observable and understood processes.
Sexual reproduction is an old process. It predates even life on land. It arose by natural means. It was selected for because it's so useful in promoting variation -- an important factor in the survival of organisms with long generation times.
Nine months isn't "correct," it's just the usual human gestation time. There were no first two humans, You're operating from a mythological framework that cannot be reconciled with fact based science.
Why ask questions about evolution if you already hold a world view that completely precludes the possibility; a world view impermeable to the answers you know you'll receive? Such questions would be fraudulent.
Would
any answer;
any evidence shake your preconceptions? Is your world-view cast in stone?
If so, why are you here?
Any evidence to this? or just blind assumption?
Ten was the prototype, half a billion years ago. There was no selective pressure to alter it. It was 'good enough'.
I do not completely agree with statement however, its too off topic to get in to. With that said, at least the very basics of gravity can be explained and understood by anyone unlike, the theory of evolution
ROFL! The physics of gravity is a great deal more complicated -- and counter-intuitive -- than the ToE. The ToE is commonsense, it requires no abstruse laws of physics. It's readily observable.