Yellow-headed day gecko

Small and slender, the yellow-headed day gecko lives up to its name with a bright greenish-yellow head. It also has turquoise-blue stripes that run along its back and a pair of black stripes that run down each side. Its underside is grayish-white underside, often with hints of orange and brown scales on the legs and feet.

 Males are larger than females. Males also have orange scales near their femoral pores, which are a pair of tiny, V-shaped glands near their hips that secrete pheromones.

Compared to many nocturnal reptiles, which often possess large eyes and vertical slit pupils that expand in low light, members of the day gecko family have small eyes with rounded pupils. This is ideal for their lifestyle, where they hunt for insects and navigate among the trees in bright light conditions. 

Like other geckos, their toes have specialized pads made of thin folds of skin covered in millions of microscopic hairs called setae. When the gecko flattens its toes, these hairs create a large amount of surface area that interacts with the surface beneath them, generating tiny frictional forces (called van der Waals forces) that allow the gecko to “stick.” As they move, geckos simply curl their toes to change the angle of the hairs and release the grip, then reset the process with each step.

Adults typically grow between 3 to 4 inches (7.6 to 10 cm) long, including their tail.

The yellow-headed day gecko is found only in two small regions in northwest Madagascar. They inhabit bamboo thickets in coastal forests, where they can blend in and hide from predators.

Expected to be around 6-8 years in the wild. In human care, some individuals may live for more than 10 years.

Yellow-headed day geckos communicate through visual displays and scent cues. Chemical signals from pheromones appear to play an important role in marking territory and attracting mates. 

Omnivorous. While insects and invertebrates make up the bulk of the yellow-headed day gecko’s diet, it will also occasionally consume plant materials like nectar, pollen, and soft fruits.

In contrast with many other members of the gecko family, day geckos are diurnal, meaning they are active during the daytime. 

These animals are known to live in small groups or colonies with established social hierarchies. Usually, these colonies have one dominant breeding male along with multiple females. Males defend their territories and compete for mates by tail wagging and occasional skirmishes.

Females lay one or two eggs per clutch every 3–5 weeks, typically hiding them in bamboo crevices for protection. The eggs incubate for about 30–60 days before hatching. Hatchlings are fully formed, independent from birth, and begin feeding shortly after emerging.

Yellow-headed day geckos are an endangered species. With a range limited to just two small areas, they face severe threats from deforestation and habitat loss of Madagascar’s remaining coastal forests.