Humans almost became extinct

Didn't Adam and Eve only have sons ?

Cant believe people still believe in that Adam and Eve bullshit, same goes for religion.

Okay, so if not Adam and Eve (i.e. if abiogenesis and evolution happened instead), how could the first life form(s) provide enough genetic diversity to survive? How could each new evolved species survive, if only a few ever evolved/lived at the same time? Same problem, which that article does not answer.

You know what prokaryotic and Eukaryotic cells are?

The first forms of life were bacteria like. If you know anything about bacteria you know they don't need genetic variety to reproduce as they simply divide. Genetic mutations led to new species (or there light even have been several sources of different life). I do not see a problem with the genetic diversity in that.

If "Genetic mutations led to new species," how many of one new species were there when it first arose?

A couple.

When what first arose?

Example of a species undergoing a change- gene mutation in some small lizard makes it green. It being green makes it easier to survive in its environment because it can camouflage better. As a result, it is more likely to survive and breed. The gene gets passed on, and soon every lizard is green because green ones survive better.

And there's a lot of definitions of species, but I think the most correct one is animals that can breed with eachother. Over a long time period of changing, animals might no longer be able to breed with eachother because they were once 1 species but groups evolved in separate environments. This is just my understanding of it, I'm not an expert but I think all this is correct.

How can the lizard gain colour change Gene?

Mutation

(get away from this post before you start another argument!)

I'm not adverse to starting an argument

Me neither, as long as its civil, talking about the issue itself and not belittling the debaters.

Alrighty then