Bearded dragons typically grow an average of one to a few inches each month for the first year of their life. While some bearded dragons can grow up to 2 feet in length, the maximum size of these animals in captivity is limited by the size of their environment. Bearded dragons achieve sexual maturity between one and two years of age.
Lizards pass through three different life stages, beginning as eggs, hatching into juveniles and ultimately becoming mature adults. Most juveniles resemble miniature versions of the adults, while others experience a change in color or body proportions as they grow. Some lizards pass through all three life stages within the course of one year, while others live long lives, taking many years to hatch and mature into adults.
Bearded dragons are omnivores and eat a variety of plant and animal matter. Pet bearded dragons also eat prepared bearded dragon food, which often comes in pellet or freeze-dried varieties.
A bearded dragon bobs its head when trying to exert dominance over another bearded dragon. Bobbing the head also signals that a male dragon wishes to mate with a female.
Chameleons are famous for being able to change colors to adapt to their surroundings. Although this ability is used partly for camouflage, it also reflects the chameleon's emotional state and intentions, according to National Zoo.
Reptiles are covered with scales. Unlike the scales of fish, reptile scales are not individual pieces. The entire outer layer of reptile skin is like a sheet of scales.
According to the National Wildlife Federation, there are over 180 different species of chameleons and only a few are in immediate danger of becoming extinct. Destroying a chameleon’s natural habitat is the biggest threat to its existence.
Leopard geckos live to be 15 to 20 years in captivity on average, although some survive to age 30. Geckos in the wild have a much shorter lifespan due to predators, injury and disease, which can all be avoided in captivity.
Lizards hibernate during the cold periods of the year, making their homes in tree trunks, rocks and wherever they can find shelter. Lizards are cold-blooded ecnotherms with no internal heating capabilities, so they must rely on heat from external sources. When winter comes, they are forced into hibernation.
Komodo dragons are the top predators in their range, and adults do not suffer predation by any species. Young Komodo dragons sometimes fall prey to predatory mammals, birds and other Komodo dragons. Juveniles live in trees as protection until they are large enough to defend themselves.
Geckos live on every continent except for Antarctica. They are mostly found in warm climates and live in numerous habitats, such as rain forests, deserts and even on cold mountain slopes.
Typically, when a bearded dragon begins to turn yellow it is a sign that the reptile is not feeling well. If a bearded dragon experiences any abnormal changes in its skin, it should be seen immediately by a veterinarian.
Green Iguanas may grow to be 6 feet long and require habitats large enough to move around in. They are comfortable at temperatures in the range of 85 degrees. Green Iguanas are herbivores and subsist on plants, fruits and vegetables. They require a great deal of UVB light, that must be supplied to them for at least 12 hours each day. Do not house two or more iguanas together.
The diet of baby lizards varies from one species to the next, but most young lizards eat insects or other invertebrates. Crickets, roaches, earthworms, mealworms and silkworms are all acceptable items, but spiders, wasps, ants and other offensive species are not appropriate food items. In addition to providing a baby lizard with the appropriate prey species, be sure to provide prey of the appropriate size.
National Geographic reports that wild geckos usually eat insects, but some species may also occasionally consume fruit and flower nectar. About.com states that leopard geckos are the species of gecko most commonly kept in captivity. They should be fed crickets, waxworms and mealworms, and the insects should be coated with a calcium-vitamin D3 supplement before feeding consumption.
Lizards do have teeth. However, the teeth of most lizards aren't specialized the way they are in animals like carnivores or rodents. All of their teeth look like pegs and are simply for catching prey and moving them down the digestive tract.
The skink lizard is always on the lookout for a meal, and they mainly eat insects. Crickets, beetles, caterpillars, grasshoppers, spiders, slugs, snails, earthworms, small mice and even other lizards are all on the menu for the skink lizard.
According to Reptiles Magazine, the green iguana can reach lengths of over 6 feet and weigh approximately 11 pounds. The green iguana lives in rain forests covering northern Mexico, Central America and southern Brazil. It is also found on the islands of the Caribbean.
Most lizards require a male and female pairing to mate; the male excretes an odor from a gland on the tail to which the female is attracted. Male lizards will mount female lizards to complete the mating process.
The average lifespan of a lizard usually runs between one and 30 years, with a median of 10 years. Because there are over 5,000 different species of lizards, the lifespan varies from species to species.
Bearded dragons show sickness through deformities, stunted growth, seizures, loss of coloration, paralysis, labored breathing, mucus discharge, diarrhea, lack of appetite and weight loss. Some of these symptoms indicate genetic deficiencies that cannot be helped, but other conditions can be amended by making adjustments to the bearded dragon's environment or diet.