Nearly all mammals have eyes equipped for some form of colour vision, but vary greatly in their ability to use it. Dogs can be trained to recognise colours but normally behave as though they see only tones of grey. Their vision is rather indistinct.

Like many other mammals, they use their eyes mainly to detect movement, rather than to see detail. They rely on their acute senses of smell and hearing.

 

 

 

 

A dog will see leaping rabbits 150 m away, but not recognise a motionless rabbit nearby.