Nocturnal geckos have superb vision in dim light - their eyes are 350 times more sensitive to colour at night than a human's (see for yourself with our animal vision interactive). Lacking eyelids, ...

An curved arrow pointing right. Human eyes could be easier to trick than you might think. A Japanese professor, Kokichi Sugihara, created sculptures that trick the mind to see the impossible.

In this film, Dr Ben Price explains the intricate workings of human eyes. By comparing our eyes to those of dragonflies, he reveals humanity's unique way of seeing. 1. The image projected onto the ...