Tiny but viable premature babies raise the criterion of size: Can an unborn child be too small to be considered human?
Indeed, to God there is no zero. The unbelievably small and the unbelievably large meet as “the closing of a vast circle,” one that bears the loving and intelligent imprint of a providential and all-embracing God. Existence is more important than size.
http://www.newoxfordreview.org/article.jsp?did=0612-demarco