The theory of evolution does not try to explain the origin of life.
It doesn’t give a believable explanation of how it evolved either.
which is a major hole in the theory. Along with the magic mutations.
Darwin's book is titled "The Origin of Species."
Adding to that, Darwin wrapped his book up with the words...
"There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved."
Suggested reading ... a modern update to the fourteen chapters in Darwin's "Origin." The modern book's title is "Darwin's Ghost" by Steve Jones.