��� JFIF ,, ���Exif MM * � � ( 1 2 2; F�� ; S�i � �Laetoli footprint made by Australopithecus afarensis approx 3.6 million years ago, Hall of Human Origins, fossil cast. original 4x5 C+F , , Adobe Photoshop 7.0 2017:02:15 14:01:42 Craig Chesek © American Museum of Natural History, All Rights Reserved � �� � � s ( � H H ��� JFIF H H �� Adobe_CM �� Adobe d� �� � �� � f"