Hobbies And Interests
Eyes
Although geckos are primarily nocturnal, they can sometimes be spotted during the day. Geckos that are nocturnal have a tendency to have large eyes. When the intensity of the light changes, so does the pupil of the eye. When the light intensity increases, the pupil closes so that it becomes a vertical slit. Geckos have more sensitive eyes than humans and have more sensitive photoreceptors. Their eyes can focus sharply, but they do not require a lot of light to see color. Some geckos, such as the Albino Leopard Gecko, are sensitive to light the first few months of their life
Temperature Regulation
Geckos tend to have the ability regulate their temperature despite light intensity. They inhabit environments that have temperatures that fluctuate rapidly and must be able to regulate their body temperature accordingly.
Changes in Coloring
Geckos can be blue, black, purple and pink. A gecko's coloring often changes when the intensity of the light increases, allowing the species to blend into its environment. Temperatures of 80 to 90 degrees cause geckos to be lighter in color, while temperatures around 80 cause darker coloring and spotting.
Light Cycles
Geckos normally have 14 hours of light and 10 hours of darkness during the summer. When exposed to light, geckos secrete hormones from their pineal gland that stimulate growth. In the winter, the shorter photoperiods lead to lower hormone levels, slowing the gecko's growth.