Living in the deep sea, these ostracods (a kind of crustacean) never see sunlight. They have the best night vision of any known animal and probably use their eyes to search for bioluminescent animals ...

The animal kingdom is full of mesmerising creatures ... Elephants have large, kind eyes that are like a symbol of their gentle and intelligent nature. The deep brown or amber eyes of an elephant ...

Living animals illustrate every possible intermediate ... “They would have done so much better with camera-type eyes. But evolution didn’t find that. Evolution isn’t clever.” ...