Leach's giant gecko, Leachie
Rhacodactylus leachianus, commonly known as the New Caledonian giant gecko or Leach's giant gecko or colloquially Leachie, is a large species of gecko in the family Diplodactylidae. The species, which was first described by Georges Cuvier in 1829, is endemic to New Caledonia.
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NocturnalNocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal",...
Crepuscular animals are those that are active primarily during twilight (that is, the periods of dawn and dusk). This is distinguished from diurnal...
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OmnivoreAn omnivore is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and ani...
An insectivore is a carnivorous plant or animal that eats insects. An alternative term is entomophage, which also refers to the human practice of e...
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ArborealArboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some anima...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Precocial species are those in which the young are relatively mature and mobile from the moment of birth or hatching. Precocial species are normall...
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starts withThe New Caledonian giant gecko is the largest extant gecko in the world and is considered an example of island gigantism. It has a heavy body, loose skin, and a small, stumpy tail. It is variable in color, coming in shades of mottled green, gray, and brown.
New Caledonian giant geckos are found in moist and montane forests of the southern and eastern portions of the main island of New Caledonia, as well as on several of the smaller islands in the group.
These giant geckos are solitary and live high in tree canopies. They are nocturnal but may come out to bask in the sun during the day. They can make a loud growling noise, and local people call them "the devils in the trees". Like many chameleons, New Caledonian giant geckos can change the color of their skin. This is due to pigment-containing cells called chromatophores. Depending on the amount of sunlight, their skin may be lighter or darker. This is a form of mimicry and can help the gecko blend into their environments. These giant geckos also can climb vertically up glass surfaces. This is due to adhesive pads on their feet called lamellas, which are made up of tiny hairs which increase friction force when applied to surfaces.
New Caledonian giant geckos are omnivores. Their diet includes insects, spiders, small vertebrates, fruit, nectar, and sap.
Adult females lay 2 soft-shelled eggs at a time, having up to 10 clutches per year. The young hatch after the incubation period of 60 to 90 days and are typically 8.9 to 10.2 centimeters (3.5 to 4 inches) long.
New Caledonian giant geckos are threatened by habitat destruction and degradation. They also suffer from poaching and face predation by introduced species such as cats and various rodents. These geckos can also be electrocuted by high-tension power lines when they travel along power lines.
The IUCN Red List and other sources don’t provide the number of the New Caledonian giant gecko total population size. Currently, this species is classified as Least Concern (LC) on the IUCN Red List and its numbers today are stable.