Semiprotected edit request on  February      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 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     Fixed thanks    I LOVE JOHN PION FOREVER    Preceding unsigned comment added by       Dogs to replace sat nav   Dogs prefer when they are off the leash and Earths magnetic field is calm to urinate and defecate with their bodies aligned on a northsouth axis Whoever added this failed to mention that such alignment occasionally causes the excrement to land on locked Wikipedia articles   Preceding unsigned comment added by     Do you have a citation to counter the one given in the article    Observation provides the proof no matter how unusual this may sound       I think it was me that added the source  The IP should look at the magnetoception article it is full of surprising examplesDrChrissy