Veiled chameleon

The veiled chameleon (Chamaeleo calyptratus) is a species of chameleon that lives in the Arabian Peninsula, mainly in Yemen and Saudi Arabia. It is also called the cone-head chameleon, Yemen chameleon, or Yemeni chameleon. Baby veiled chameleons are born a soft pastel green and do not have the special bony plate, called a casque, on their heads. If they get startled, these little chameleons might fall to the ground and turn bright red from stress.

As veiled chameleons grow older, the casque on their head develops, and they get brighter colors and a noticeable gular fold that sticks out from their throat and chin. These chameleons can change color for many reasons, such as to show aggression, to signal their social status, during reproduction, or when they feel stress. Females usually live about five years, while males can live around eight years. They can have babies several times each year.

Etymology

The name 'veiled chameleon' comes from the special shape on the chameleon's head, which looks like a small veil. The word 'chameleon' has ancient Greek roots, combining words for 'low to the ground' and 'lion', suggesting the chameleon is like a tiny, dignified lion that stays close to the earth. The species name 'calyptratus' also means 'veil' in Greek, pointing to the same head feature that helps the chameleon drink water from dew and rain.

Description

Male veiled chameleons are usually between 43 to 61 cm long from their nose to the tip of their tail, while females are shorter, about 35 cm, but have thicker bodies. Both males and females have a special bump, called a casque, on their heads that gets bigger as they grow older. Baby veiled chameleons are born a soft pastel green and develop stripes and different colors as they get older. Adult females are green with white, orange, yellow, or tan spots. Adult males are brighter, with clear bands of yellow or blue and some spots.

The color of these chameleons can change depending on a few things, like their social status. For example, young chameleons kept alone grow up darker and duller than those kept with others. Females also change color during their reproductive cycles. When chameleons feel stressed, they usually turn a much darker color.

Subspecies

There are two types of veiled chameleons. The first is called Chamaeleo calyptratus calyptratus, first described in 1851. The second is called Chamaeleo calyptratus calcarifer, also known as the short-casqued chameleon, and it was described in 1871 by W. Peters.

Habitat and distribution

The veiled chameleon (Chamaeleo calyptratus) is a tree-dwelling species. It comes from the south-western part of the Arabian Peninsula, where the weather is dry but warm. This chameleon likes to live in trees and big plants, especially in places like plateaus, mountains, and valleys. It enjoys warmer temperatures, usually between 24 and 35 °C (75 and 95 °F). Because it can get stressed easily, it can be tricky to care for these chameleons in captivity.

Diet

The veiled chameleon mainly eats small insects, especially green ones. Unlike some other animals, it can also eat plants like vegetables and fruits, which may help it get water during dry times.

Behavior

Reproduction and life cycle

Veiled chameleons grow up quickly, reaching maturity in just four to five months. Females lay large groups of up to 85 white eggs and bury them in sand. The eggs rest for about 60 to 75 days before the babies start to develop, and warmth helps them grow.

These chameleons don’t live very long, usually only 6 to 8 years even with good care. Males often live a bit longer than females.

Protective coloration

Veiled chameleons can change their colors to talk to each other without fighting. When they are ready to show they are angry, they make their colors brighter, especially their stripes. This helps other chameleons know they are strong and might win a fight. Changing colors quickly is a way for them to show how strong they feel.

Mating

Males show off to females by changing colors, swaying their bodies, and moving their tails. Females show they are ready to have babies by turning pale blue. When a male and female mate, the female might turn darker green and show brighter yellow colors when it goes well.

Parental care

After mating, female chameleons look for safe places to lay their eggs. They dig tunnels and hide their eggs under sand. To help the eggs grow, they are kept in a special mix and kept warm and moist. Baby chameleons are kept in small, safe spaces until they are big enough to live alone.

Disease

Veiled chameleons can get sick like many reptiles. They might develop eye infections or swellings under their skin from bacteria, fungi, or parasites.

Young veiled chameleons kept in homes can sometimes have problems with their bones if they don’t get the right food and sunlight. They can also face other health issues, such as trouble breathing from the wrong amount of moisture, infections, and problems in their mouths. Some viruses that make snakes sick can also affect veiled chameleons, causing sneezing and other symptoms, especially in younger ones.

Captivity

The veiled chameleon is a popular pet and is often kept in homes. People have been raising these chameleons as pets for about thirty years. While they can live well in captivity, caring for them can still be tricky to keep them healthy.

Husbandry

Veiled chameleons need special care to stay healthy. It's very important not to release them into the wild, as they can harm local plants and animals. If someone no longer wants a veiled chameleon, there are rescue groups that can help.

These chameleons need a tall, roomy home with lots of places to climb. An adult should have a space about 2 feet wide, 2 feet deep, and 4 feet tall, filled with vines. They also need a warm spot of about 90–95 degrees Fahrenheit to rest and a cooler area around 70–80 degrees Fahrenheit. They need special lighting to help their bodies use calcium properly.

Veiled chameleons eat live insects like crickets, roaches, and mealworms. Their food should have extra calcium. They also need fresh water and a humid environment. The enclosure should be mist several times a day, and a small water dripper should be provided so they can drink from water droplets.

Research

Scientists are very interested in studying veiled chameleons because of their special body features, like hands and feet that split to grip branches, a long tail for holding on, and eyes that move independently. These traits help researchers learn about how animals change over time and develop new features.

Veiled chameleons are also helpful for experiments because they are easy to breed in labs. Females can lay many eggs several times a year without needing a cold period first. This makes them great for studying how animals grow and change from reptiles to mammals and birds. Their teeth also help scientists understand how teeth connect to bones in healthy and unhealthy conditions.

Invasive species

This chameleon has become a problem in Hawaii, where it is not from and harms the local ecosystem. A group of them lives on Maui, and some have also been seen in the wild in Florida after escaping from homes.

These chameleons eat many native insects, such as the koa looper moth and the cabbage tree emperor moth, as well as plants like lehua, koa, and hala. They also eat small lizards like the mourning gecko and the gold dust day gecko.

They can lay between 30 and 95 eggs, and they can do this three times a year. The eggs take about six months to hatch, and these chameleons can live for up to 4 to 8 years. Because they can have many babies quickly and eat many native animals and plants, they are a big concern for the natural world in Hawaii.

People are working to control the number of these chameleons in Hawaii. One way is by catching and removing them from the wild, especially where they have made homes. There are also programs to teach people not to let non-native animals go into the wild.

In 1992, Hawaii made a rule that it is illegal to bring in, own, or move veiled chameleons without special permission. This helps protect Hawaii's nature and its special plants and animals. Breaking this rule can lead to fines, time in imprisonment, and the taking away of the chameleons.

Adaptations

Veiled chameleons have many special features that help them survive. They can change their color to match their surroundings, which helps them hide from danger and catch food. When they feel upset, they often turn black or grey.

These chameleons also have a tail that helps them grip branches, making it easier for them to move through trees. They have a long, sticky tongue that can reach twice their body length to catch insects from far away. Their eyes can move independently, giving them a full view of their surroundings to spot threats.

Veiled chameleons have special feet that help them hold onto branches tightly. They also have a hooded head that helps them collect water droplets, which slide down into their mouth. This hood plays a role in their mating, as males with larger hoods are preferred by females.

Culture

The earliest known description of a chameleon was written by the ancient scientist Aristotle.