How do you know if your leopard gecko has gone blind?

Nocturnal colour vision in geckos

Lina S. V. Roth and Almut Kelber

University of Lund, Department of Cell and Organism Biology,

Vision Group, Helgonava¨gen 3, S-223 62 Lund, Sweden

Author for correspondence

Our results show that nocturnal geckos are able to dis-

criminate colours in very dim light. Exactly what they use

this ability for and precisely how well they see colour,

remains to be investigated. Geckos are only the second ani-

mal group after a nocturnal hawkmoth (Kelber et al. 2002)

that have been proved to see colour when we are colour-

blind. However, this remarkable ability may be more com-

mon than we thought.