Mourning Gecko (Lepidodactylus lugubris)

The Mourning Gecko originates from the Indo-Pacific region. It also emits a unique 'mourning' call, a series of soft, sorrowful chirps. This type of gecko can thrive in different parts of the world. 

These geckos are small, with an average size of around 4 inches, but they can live up to ten years in captivity with proper care. Their diet consists of sweet, juicy fruits, crunchy insects, and their shed skin!

It is most active at night when it hunts for food. Notably, the Mourning Gecko is parthenogenetic, which means that females can produce offspring without a male.

New Caledonian Giant Gecko (Rhacodactylus leachianus)

The New Caledonian Giant Gecko is the largest gecko species on the planet, with adults reaching up to 17 inches in length. These types of geckos have robust bodies and large heads, with unique granular skin covering them. 

Their color palette ranges from greens to browns, often decorated with patterns of varying shades, enabling them to blend into tree bark and foliage.

This type of gecko is a nocturnal predator that feeds on insects, fruits, and small mammals, occasionally indulging in cannibalism. 

They also communicate through growling, barking, and hissing, which are crucial, especially during the mating season.

Satanic leaf-tailed gecko (Uroplatus phantasticus)

The satanic leaf-tailed gecko camouflages as dead leaves and twigs to evade predators. Endemic to Madagascar, these gecko species' coloration varies according to the trees they live on. Spikes and ridges run along their heads, bodies, and legs. Their flattened tail looks exactly like a dead leaf.

In addition to its strange appearance, the animal likely gets its name from the blood-curdling scream it uses to deter attackers.