Through The Eyes Of An Octopus

An octopus sees the same thing upside down as right-side up.

 Picture from Cool Facts For Kids

An octopus' eyes have horizontal pupils.  What's even more unusual is that the octopus' eyes remain at the same orientation regardless of the creature's position. So if it turns on its side or even upside down, the gaze of the eyes remain fixed in relation to the horizon.