Perceval said:What it said to me was there is something missing in a dogs 3D perception, that they cannot deduce that the food is on top of the table, even though they can see the table, maybe they just can't visualise the table top
Aha... but they can smell and figure out where that smell comes from. Dogs may not logically think/deduce, but I really cannot say that for sure. Another thing I cannot prove is perhaps our senses and true abilities have been systematically dumbed down. Stories like the Druids using the power of memorization and losing brain power when the written word came on the scene. Or, centuries of city life have lessened our need for instincts that were necessary for survival (hearing, sight, and smell) ...
edit: Perceptions from experience also may form what & how we think. Can't find it now, but there was a survey some time ago asking people "less civilized" than us if they were happy. They did not understand the concept of happy. How could they know happy when every day they work, toil, and do what is necessary for sheer existence. Happiness seemed to be part of "civilized" life. For those who had liesure "time" to contemplate navels, so to speak.