you sound like you never heard of it before. the theory of evolution is the most accepted theory and should be common knowlage by now.
can't expect much from the getbig crowd i guess
theres a difference between
knowing about the theory of evolution
and
knowing about the theory of evolution and how it relates to natural selection and genetic mutations and the development of species over time
also... evolution is a scientific fact (lets not get into the impossibility of knowledge and the denial of fact because that conversation leads no where - literally

)
but evolution doesnt explain for the existence of matter it itself
which is really what the "chicken or egg" question is all about anyways