Semi protected edit request on 22 February 2015 Very tiny point in the Early roles section They would have benefited from humans upright gait that gives them larger range over which to see potential predators and prey as well as color vision that at least by day gives humans better visual discrimination 37 Camp dogs would also have benefitted from human tool use as in bringing down larger prey and controlling fire for a range of purposes It would be as well to spell the word the same way on each occasion 86 136 150 74 Fixed thanks I LOVE JOHN PI ON FOREVER 3 Preceding unsigned comment added by 216 161 34 66 Dogs to replace sat nav Dogs prefer when they are off the leash and Earth s magnetic field is calm to urinate and defecate with their bodies aligned on a north south axis 196 Whoever added this failed to mention that such alignment occasionally causes the excrement to land on locked Wikipedia articles Preceding unsigned comment added by 86 167 241 190 Do you have a citation to counter the one given in the article Observation provides the proof no matter how unusual this may sound talk I think it was me that added the source The IP should look at the magnetoception article it is full of surprising examples DrChrissy