Heartbeat and Brainwaves We've prepared these compelling signs to illustrate the development of the human embryo in perspective of common coins from many different countries. Click on each one to see more detail. AMERICA ARGENTINA AUSTRALIA BANGLADESH BELGIUM BRAZIL BRITAIN CANADA CHINA COLOMBIA CZECH REPUBLIC DENMARK EGYPT ESTONIA FINLAND FRANCE GERMANY GHANA HUNGARY INDIA INDONESIA ISRAEL ITALY JAPAN KENYA LATVIA MEXICO MYANMAR NAMIBIA NETHERLANDS NIGERIA NORTH MACEDONIA NORWAY PAKISTAN PHILIPPINES POLAND ROMANIA RUSSIA SLOVAKIA SOUTH AFRICA SOUTH KOREA SPAIN SWEDEN THAILAND TOGO TURKEY UGANDA UKRAINE VIETNAM