I just want to add that yes, evolution by natural selection is a mechanism that can help us understand how the natural world came to be as it is. But not entire

I just want to add that yes, evolution by natural selection is a mechanism that can help us understand how the natural world came to be as it is. But not entirely. There is also sexual selection for example which leaves species with traits that decrease their pure chances of survival as an individual (think of peacocks dragging along that ridiculous but beautiful tail). And maybe there are more effects, yet undiscovered. I know that group selection is still often a center of debate. I like David Sloan Wilson's work about it [0]. So, yes evolution by several forms of selection is pretty well established but by no means do we fully understand how the natural world came to be as it is today. Which is nice if you ask me. As you say, we are tweaking this theory. [0] https://en.wikipedia.org/wiki/David_Sloan_Wilson https://en.wikipedia.org/wiki/David_Sloan_Wilson