Jackson's chameleon

Jackson's chameleon (Trioceros jacksonii), also known commonly as Jackson's horned chameleon, the three-horned chameleon, and the Kikuyu three-horned chameleon, is a special kind of chameleon. It belongs to the lizard family known as Chamaeleonidae. This amazing creature is originally from East Africa, but people have also brought it to places like Hawaii, Florida, and California.

One of the most interesting things about Jackson's chameleon is its three horns – well, two on top and one on the nose! These horns help make it look scary to possible attackers. There are three different types, or subspecies, of this chameleon, each with its own special look.

Chameleons like Jackson's are famous for their ability to change color. They do this to show their feelings, blend into their surroundings, or even to communicate with others of their kind. This helps them stay safe and find friends in the wild.

Taxonomy

Jackson's chameleon was first described by a zoologist named George Albert Boulenger in 1896. He was from both Belgium and Britain, and he helped scientists learn more about this interesting lizard.

Etymology

The name Trioceros comes from Greek words meaning "three" and "horns," referring to the three horns on the heads of male Jackson's chameleons.

The name jacksonii honors Frederick John Jackson, an English explorer and bird expert who was the first Governor of Kenya when the chameleon was described.

Subspecies

Jackson's chameleon has three recognized subspecies. These are:

• T. j. jacksonii (Boulenger, 1896) – Jackson's chameleon
• T. j. merumontanus (Rand, 1958) – dwarf Jackson's chameleon
• T. j. xantholophus (Eason, Ferguson & Hebrard, 1988) – yellow-crested Jackson's chameleon

Nota bene: A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than Trioceros.

Habitat and geographic range

Jackson's chameleon is a tree-dwelling lizard that lives in woodlands and wet forests. It is naturally found in parts of Kenya and northern Tanzania, where it lives at heights between 1,600 to 2,440 meters above sea level. These areas have rainy seasons and get more than 127 centimeters of rain each year. During the day, temperatures are usually between 16–27°C, and at night, they drop to 4–18°C.

One type of Jackson's chameleon was brought to Hawaii in 1972 and has since spread across all the main islands. It also appears in Florida. In Hawaii, it lives in moist, shady spots at lower heights, between 100 to 1,000 meters. This chameleon was once a big part of the pet trade in the United States, but now taking them from Hawaii is against the law to help protect the environment.

Description

Jackson's chameleon, also called the three-horned chameleon, is known for the three brown horns on the males' heads. One horn sits on the nose, and the other two are above the eyes. Females usually don’t have horns, or they might have a small bump on the nose. These chameleons are mostly bright green, but they can change color quickly depending on their mood, health, or temperature.

Males can grow up to about 38 centimeters (15 inches) long, including their tail, while females are usually around 25 centimeters (10 inches). They have a saw-toothed ridge along their back and reach full maturity in about five months. The largest type of Jackson's chameleon is called T. j. xantholophus, and it has been bred in captivity since the 1980s.

Ecology

Jackson's chameleon mainly eats small insects, along with centipedes, isopods, millipedes, spiders, small birds, and snails. It moves around while looking for food rather than waiting in one place.

These chameleons have been introduced to places like Hawaii and California, where they can harm local wildlife. They have been found eating many types of insects and even whole snails, including their shells. This can be dangerous for animals that live only in those areas and are not used to sharing their food with the chameleons.

Reproduction

Most chameleons lay eggs, but Jackson's chameleons are different. They are born live from their mothers after about five to six months. A mother Jackson chameleon can have between eight to thirty babies at one time. One subspecies, called T. j. merumontanus, usually has five to ten babies.

In captivity

Jackson's chameleons make interesting pets, but they need special care. They like cool nights and need the right amount of moisture to stay healthy. If the air is too dry or too hot, they can get sick in their eyes and noses. With the right food and care, these chameleons can live for five to ten years in a home.