Geckos
Nocturnal geckos use their three types of color receptors to see in weak light. This means their world is full of colors even at night. Most other vertebrates and human beings, on the other hand, are color-blind at night.
Nocturnal geckos use their three types of color receptors to see in weak light. This means their world is full of colors even at night. Most other vertebrates and human beings, on the other hand, are color-blind at night.