Re: Why rabbits' eyes are red?

Hi Jiezhen

Most rabbit's eyes are not red. Those that seem red are probably 
domesticated forms such as white (albino) rabbits. These have little or no 
pigment in their skin, fur and eyes and so light hits the retina at the 
back of their eyes directly. The retina has many blood vessels and 
therefore looks red. This is the same effect as 'red-eye' that you 
sometimes get when you take flash photographs of people.

I hope that helps

Dr David Hubble
Leicester, UK