Can you explain the big bang theory of how we evolved from homosapiens?
It seems to me that you’d get a better answer if you split your question into two and asked them in the appropriate sections. Also, such a broad question isn’t really going to net you a good answer here. You’d be better off doing some basic reading, like going to wikipedia and then asking specific questions about things which confused you. I’m not qualified to answer the question on evolution (even though I’m a certified homo sapien!) but I’ll take a crack at the big bang. Essentially big bang theory states that at some point in the past, all of the matter, energy and space of the universe was at a single point and it has been expanding since that time. There are several important pieces of evidence for this. One is the expansion itself, which we measure through the doppler shift. There is no evidence that the universe has done anything other than expand. Another piece of related evidence is the cosmic background radation. A third piece of evidence is the relative smoothness of the uni
