Common house gecko

This little lizard likes warm places.

It lives near many cities. It hides during the day. It comes out at night to hunt.

It looks for bugs near lights. It eats things like flies and spiders. You might hear it make a chirping sound. It can live for about seven years.

This lizard is a very good climber.

The common house gecko is a small lizard.

It is native to South and Southeast Asia. Now, it lives in many other places too. This includes parts of Australia and Mexico.

These geckos are nocturnal. This means they hide during the day. They come out at night to hunt. They like to stay near city lights. This is because bugs gather around the lights. The gecko eats many things. It eats flies, moths, and spiders. It even eats small beetles.

Geckos are ectothermic. This means they are cold-blooded. They use their behavior to stay warm. They might sit in the sunlight to get heat. They can live for about seven years. They are not harmful to people. However, they can bite if they feel scared. Some males have large heads. They use these heads to fight for their space.

Females lay up to two hard eggs at one time.

The common house gecko is a small, busy lizard.

It is native to South and Southeast Asia and Near Oceania. People call it many names, like the Asian house gecko or the tiktiki. These lizards are nocturnal, which means they sleep during the day. They come out to hunt at night. You might hear them chirping near your home.

They can live for about 7 years. They are not venomous and are not harmful to humans. However, a gecko might bite if it feels very scared.

These geckos follow a special way of living to stay active. They are ectothermic, or cold-blooded. This means they cannot make their own body heat. Instead, they use their behavior to manage their temperature. They might sit in the sunlight to warm up. They also like to stay in warm, humid areas.

When it gets cold, they can enter a state called brumation. This helps them survive during colder months. They prefer to be near cracks where they can hide quickly. This helps them stay safe from danger.

Finding food is a big part of their nightly routine. The gecko is a hunter that loves urban areas. It stays close to city lights to find meals. Many insects, like moths and flies, gather around porch lights.

The gecko eats cockroaches, termites, bees, and spiders. It even eats small beetles and some molluscs. Sometimes, they might even eat smaller geckos. This diet helps them grow strong in busy cities. They are very good at finding food in human neighborhoods.

We have learned a lot about these lizards over time. In Mexico, the first ones were found in Acapulco in March 1895. They likely traveled there on ships or in cargo. By the early 1940s, they were living all over that region.

Now, they are found in many places like Australia and the Caribbean. They can live in 21 of the 32 Mexican states. Because they are so good at moving to new places, scientists watch them closely. They want to make sure they do not hurt native animals.

Watching a gecko is like watching a tiny survival expert. They can live in many different types of places. They can thrive in thick forests or near big cities.

Some males have very large heads to help them fight for territory. This helps them keep their space in crowded areas. Females are different and often have longer legs to help them move fast. Even though they are small, they are very tough. They show us how animals adapt to live alongside people.

The common house gecko, known scientifically as *Hemidactylus frenatus*, is a highly adaptable lizard.

It is native to South and Southeast Asia and Near Oceania. This species is often called the Asian house gecko or the Pacific house gecko. It is also known by local names like tiktiki or chipkali. These geckos are important to study because they are very successful at living near humans. They are nocturnal, meaning they hide during the day and forage at night. They are non-venomous and generally not harmful to people.

These geckos use specific behaviors to manage their body temperature. They are ectothermic, which means they are cold-blooded. They cannot generate their own internal body heat like humans do. Instead, they use thermoregulation to stay at the right temperature. They are described as quinodiurnal, meaning they thermoregulate during the day and hunt at night. When the environment is between 26 and 35 degrees Celsius, they can modify their temperature through behavior. They might sit in sunlight or choose specific surfaces to sit on.

Finding food is a major part of their nightly routine. The gecko is synanthropic, which means it thrives in environments built by humans. They prefer urban landscapes where they can find many insects. They often hunt near artificial lights on buildings or porches. Many invertebrates, such as moths and flies, are attracted to these lights.

Their diet includes cockroaches, termites, bees, wasps, butterflies, and spiders. They also eat molluscs and occasionally smaller geckos. This ability to hunt near lights gives them a great advantage in cities.

Because they are so adaptable, they have spread to many new places. They are now found in the United States, Australia, and the Caribbean. They have even reached parts of Africa and the Middle East. In Mexico, they were first collected in Acapulco in March 1895. By the early 1940s, they were well established in that region.

They likely traveled to these new areas through shipping and cargo. They can now live in 21 of the 32 Mexican states. Their ability to enter brumation, a state of dormancy, helps them survive colder months.

This success can sometimes cause problems for native animals. The common house gecko is considered an invasive species in many areas. They can outcompete native geckos for food and space. They do this through several different mechanisms. For example, they are often more aggressive than other species. They can also live in much higher densities than native lizards.

This means many geckos can live in one small area. They may even trigger an avoidance response in other species like the mourning gecko. This forces the native animals to leave good feeding areas.

There are interesting physical differences between male and female geckos. Some males are more territorial than others. These territorial males often have larger heads to increase their biting force.

However, a larger head can make them slower at escaping danger. Females are different because their larger heads are balanced by longer hind limbs. This allows them to maintain their speed for escaping predators. These physical traits show how the species has adapted for both fighting and survival. Even their reproductive methods are specialized, as females lay up to two hard-shelled eggs at a time.

Understanding the common house gecko helps scientists study how species move across the world. Their spread is linked to both human travel and climate change. As cities grow and temperatures rise, these geckos may find even more places to live.

Scientists work to limit their introduction to new areas to protect native wildlife. By studying how they compete and survive, we learn more about the balance of nature in urban worlds.