Jackson's chameleon

The Jackson's chameleon is a green lizard.

Some males have three small horns on their heads.

These horns look a bit like a dinosaur.

This lizard lives in wet forests. It likes to climb on trees.

It eats many small things. It likes to eat bugs and snails. The lizard even swallows the snail shells whole!

These lizards can change their color. They do this when they feel different. It is a very cool animal!

The Jackson's chameleon is a green lizard.

It is native to East Africa. It lives in wet forests and woodlands. These lizards are arboreal. This means they live in trees.

Some males have three brown horns. They have one horn on the nose. They also have one horn above each eye.

This makes them look like a dinosaur. Females usually do not have horns. These lizards can change color. They change based on mood, health, or temperature.

This lizard eats many small things. It eats insects like grasshoppers and beetles. It also eats snails. The lizard swallows the snail shells whole!

Most chameleons lay eggs. But Jackson's chameleons are ovoviviparous. This means they give birth to live young. The babies hatch inside the mother first. Then they are born alive. They stay inside the mother for five to six months. A mother can have eight to thirty babies. The dwarf subspecies has fewer. It has five to ten babies.

Jackson's chameleon is a special kind of lizard. It belongs to the family Chamaeleonidae. Many people call it the three-horned chameleon. This name comes from the horns on the males. These lizards are arboreal. This means they spend most of their time in trees. They are very important to study in their homes.

These lizards have a unique way of growing. Most chameleons lay eggs in the ground. Jackson's chameleons are ovoviviparous. This means the babies hatch inside the mother first. Then they are born as live young. This happens after a five to six month gestation. A mother can have eight to thirty babies at once. The dwarf subspecies, T. j. merumontanus, has only five to ten.

A scientist named George Albert Boulenger described them in 1896. He was a zoologist from Belgium and Britain. The name Trioceros comes from Greek words for "three" and "horns." This describes the three brown horns on a male. One horn is on the nose. Two more are above the eyes. The specific name honors Frederick John Jackson. He was the first Governor of Kenya.

These lizards live in many different places now. They are native to East Africa. You can find them in Kenya and Tanzania. In Tanzania, they live on Mount Meru. They like wet forests and woodlands. They were moved to Hawaii in 1972. They are also in Florida and California. In Hawaii, they live in shady places at high altitudes.

Jackson's chameleons are active hunters. They are cruise foragers. This means they hunt while they move around. They eat many small insects. They eat grasshoppers, beetles, and dragonflies. They also eat spiders and centipedes. Some even eat small birds or lizards. In Hawaii, they eat land snails. They swallow the whole snail and the shell.

Jackson's chameleon, also known as the three-horned chameleon, is a unique species of lizard. It belongs to the family Chamaeleonidae. These animals are arboreal, meaning they live primarily in trees and woody plants. They are native to the woodlands and wet forests of East Africa. However, they have also been introduced to places like Hawaii, Florida, and California. Understanding these lizards helps scientists learn about how species move between different environments.

The name of this lizard tells a story about its appearance and history. The genus name, Trioceros, comes from two Greek words. "Tri" means three, and "keras" means horns. This refers to the three distinct horns found on the heads of males. The specific name, jacksonii, honors Frederick John Jackson. He was an English explorer and the first Governor of Kenya. The Belgian-British zoologist George Albert Boulenger first described the species in 1896.

Males of this species have a very specific physical look. They possess three brown horns that look like those of a Triceratops dinosaur. One horn is called the rostral horn and sits on the nose. The other two are called preocular horns. These sit above the superior orbital ridges, which are the bones above the eyes. Females generally do not have these horns. They might only have small traces of the rostral horn.

There are three recognized subspecies of Jackson's chameleon. The first is the nominate subspecies, T. j. jacksonii. The second is the dwarf Jackson's chameleon, known as T. j. merumontanus. This small subspecies is endemic to Mount Meru in the Arusha Region of Tanzania. The third is the yellow-crested Jackson's chameleon, or T. j. xantholophus. This is the largest subspecies. It was introduced to Hawaii in 1972 and has established populations on all main islands.

These lizards have a special way of reproducing called ovoviviparity. Most chameleons are oviparous, which means they lay eggs. However, Jackson's chameleons give birth to live young. The babies hatch from an egg sac inside the mother first. This happens after a gestation period of five to six months. A mother can give birth to between eight and thirty live young. The dwarf subspecies, T. j. merumontanus, typically has only five to ten babies.

Jackson's chameleons are active hunters known as cruise foragers. This means they hunt by moving around rather than waiting in one spot. Their diet consists mostly of small insects like grasshoppers, beetles, and dragonflies. They also eat spiders, centipedes, and millipedes. In Hawaii, they have become an invasive species because they eat native animals. They prey on land snails, including the critically endangered O'ahu tree snail. They are known to swallow these snails whole, including the shells.

In the wild, these lizards live in specific climates. In East Africa, they live in areas where rainfall is seasonal. Daytime temperatures are typically 25°C, while night temperatures are around 15°C. In Hawaii, they prefer wet and shady places at altitudes of 600 to 1,200 meters. When kept in captivity, they require high humidity. They also need cooler temperatures at night to stay healthy. Without the right environment, they can develop eye or respiratory infections.