[4] While resting, they are typically a dull gray-brown color and carry dark spots all over the dorsal side.

This contributes to their ability to succeed in a human house as a habitat; they can grip onto ceilings and glass windows.

[7] When in periods of stress such as a predator chase, the dubious dtella can lose its tail as a mechanism for feigning injury.

[9] The dubious dtella is very adaptable and can live in a variety of habitats, including woodlands, dry forests, and shrublands.

Its broad niche contributes to the prevalence of G. dubia in Queensland homes, as houses provide a hiding from predators and increased access to prey.

[10] They also enjoy foraging dispersed prey at night time, which would explain their presence in the Australian bush.

[12] The abundance of night insects, such as ones crowding around light in human settlements, could explain the prevalence of G. gubia in the households.

[11] Their preference for dark, dry spaces leaves explains their often being found in dimly lit corners of houses at night[13] Furthermore G. dubia has been known to feed on plant nectar and sap as well.

In the presence of intruders, native geckos display aggressive behaviors such as biting, chasing, and clawing in order to protect their diurnal home space.

With the onset of climate change, these lizards are shifting their activity times to avoid lethal exposures to high temperature during the day and stay warm at night.

[17] When confronted, dtellas can take measures such as losing their tail at a certain fracture point, which will later grow back in replacement.

[15] Asian House Geckos (Hemidactylus frenatus) are an invasive species that were accidentally introduced to the Northern Territory and Queensland in the 1960s.

There is significant overlap between the ecological niches of H. frenatus and native geckos such as G. dubia, resulting in direct competition between the species.

Many scientists therefore believe that H. frenatus has been displacing and outcompeting G. dubia in houses, and pushing them back to natural areas like wooded forests and rocky outcroppings.

While Asian House Geckos engage in a lot of defensive behaviors like running away or having tail displays, Dtellas bite and scratch competitors when threatened.

[14] Asian House Geckos also engaged in more anti-predatory behavior, most likely due to the fact that they are newer to the area.

[18] Since they are commonly found in houses and urban environments, G. dubia is frequently encountered by the Australian public.

They are often heard scuttling around houses at night, and can knock over appliances and even accidentally ruin electrical cables.