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| Description: The change in type of work is readily apparent, but what you see here is merely the surface. The significance of this change in work is that it indicates the arrival of a new type of society. Picture Stats: Views: 363 Filesize: 93.77kB Height: 544 Width: 504 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=27880 |