It is my experience that humans are actually a UFO hybrid humanoid so that at least half of our DNA is not from earth

Why do I believe that?

One reason is that we are the ONLY species capable of speech and the type of logic that we use. It's true that some apes can use tools but they cannot speak (at least the way we do). So, though they can learn sign language which also denotes there intelligence there are no primates that can speak or write languages like we do.

Therefore, the part of us that allows us to speak and write languages is not from Earth. Because where did this attribute come from otherwise?

So, my thought is that we were an extraterrestrial hybrid that is UFO and Ape mix. This greatly shortened our lifespans from thousands of years down to 50 to 100 years at most. But, we were genetically engineered specifically to take care of humanoids not suited to the ecology of earth and eventually since we could better survive here because of our ape attributes we survived and they either died out or interbred with us until there were no pure bred UFOs living here anymore (that we know of).

So, I also agree with the concept of ancient Astronauts who came to earth.

I also believe there has never been a time when UFOs didn't visit earth even before there was an atmosphere or water here.

It's possible also that organic refuse left by space ships created the first life forms here millions of years ago.

So, the most likely time we were created as a humanoid Ape hybrid was 65 million years ago when the planet Maldek which is now the asteroid belt was destroyed by a nuclear war and a piece of this asteroid belt hit earth and killed most of the larger dinosaurs except those that retreated into caves or the oceans and lakes of the world.

So, it's likely that humans or the (ufo humanoid Ape combination) that human beings are originated 65 million years ago.

What happened during these 65 million years?

That's the 65 million dollar question now isn't it?