" ... Because the staging of human embryos is complex,
owing to the continuous process of change during development,
it is proposed that a new system of classification could be developed
using the terms mentioned in the Qur'an and Sunnah. The proposed
system is simple, comprehensive, and conforms with present
embryological knowledge.287 (Dr. Keith L. Moore, Professor Emeritus,
Department of Anatomy and Cell Biology, University of Toronto) "

― Harun Yahya , Allah's Miracles in the Qur'an