CHAMELEONOLOGY: 

Chameleon Natural History...


Reptile eggs sweat before hatching due to a combination of various factors. This phenomenon is common in species like snakes, lizards, and applies also to chameleons.

a naturalist and photographer, living in Namibia, recorded a fantastic footage of the courtship behavior of the Namaqua Chameleon, Chamaeleo namaquensis...

In June 2025, Frank Priscus Shirima made an astonishing discovery in the Usa River area, Arusha, Tanzania. He found a male Common Flapneck Chameleon, Chamaeleo dilepis. Finding one wasn't unusual, as they are frequently encountered in that region, but this particular chameleon had suffered a gruesome injury, losing both its hind legs and most of...

Chameleons have a highly specialized arrangement of their fingers and toes, uniquely adapted for gripping branches with precision. This configuration, known as chamaeleodactylia, is distinctive among reptiles and plays a crucial role in their arboreal lifestyle.

Chameleons have evolved remarkable antipredatory mechanisms, one of which is akinesis, the ability to remain completely still. By avoiding movement, suppressing scent, and relying on their cryptic coloration, chameleons minimize detection by predators. This strategy is particularly evident in hatchlings, which instinctively adopt a position similar...

The majority of chameleons lay eggs that incubate for several months. As hatching approaches, the eggs begin to release a liquid or droplets on their surface, signaling the start of the hatching process. At this point, breeders in captivity face a decision: allow the baby chameleon to hatch naturally or intervene by carefully cutting the egg open....

The Carpet Chameleon (Furcifer lateralis) is a small chameleon species endemic to eastern Madagascar. It inhabits forests, shrubby areas, grasslands, and well-vegetated gardens, thriving at elevations between 120 and 1,925 meters. Males are primarily green with whitish or yellowish markings, while females display a wider range of colors, including...

This study examines the impact of habitat alteration on endemic Afromontane chameleons in the Eastern Arc Mountains of Tanzania, focusing on historical population declines due to deforestation and fragmentation. Researchers used hierarchical spatial modeling to estimate population densities and assess the effects of habitat changes over time.

A study examines the evolution of karyotypes in chameleons, focusing on chromosome number, morphology, and sex determination systems. Chameleons exhibit high variability in their karyotypes compared to other squamates, with differences in chromosome structure and interstitial telomeric signals (ITS). However, the location of ribosomal DNA (rDNA)...

Researchers have used 3D modeling to better understand the prehensile tails of chameleons, which play a crucial role in their locomotion and balance. Chameleons rely on their tails to grasp branches, allowing them to move efficiently through trees while reducing the risk of falling.

A study documents an exceptionally rare predation event involving a Eurasian eagle-owl (Bubo bubo) preying on a chameleon (Chamaeleo chamaeleon) in the wild. Chameleons are not typical prey for large nocturnal raptors, and this observation provides new insights into the ecological interactions between avian predators and arboreal reptiles.

The AG Chamäleons is a unique platform where scientists and amateur herpetologists meet to exchange knowledge and advance chameleon research. From May 16–18, 2025, its annual meeting took place in Boppard am Rhein, bringing together over 35 participants. The event kicked off with casual networking, followed by remote lectures, species-specific...

Calumma oshaughnessyi, a Malagasy chameleon species, faces increasing threats from habitat loss, climate change, and invasive species. One such invasive plant, Desmodium uncinatum (Silverleaf Desmodium), has recently been identified as a cause of chameleon mortality in Madagascar's Ranomafana National Park. This plant, introduced for cattle forage,...

Whether by circumstance or deliberate choice, many reptile keepers end up raising female Yemen chameleons (Chamaeleo calyptratus). After several months, they are often shocked when their female chameleon, despite never having encountered a male, begins changing colors and later lays a clutch of eggs.

Private keepers of chameleons often perpetuate the myth that chameleons cannot be cohabitated and that they should not see each other. While cohabitation in small enclosures is not advisable for multiple reasons, the belief that distant eye contact causes stress is false and belongs to outdated husbandry myths.

Researchers have discovered that anammox bacteria undergo surface color changes when subjected to prolonged starvation. This phenomenon is not driven by cytochrome c levels, as previously suspected, but rather by metabolic shifts that lead to iron-sulfur compound formation.

Influenza A virus is notorious for its ability to undergo frequent antigenic changes, earning it the nickname "The Chameleon Virus." Since its first isolation in the United Kingdom in 1933, researchers have identified key mechanisms that allow the virus to evade immune defenses and persist in human populations. The hemagglutinin (HA) protein plays...

Chameleons have been kept in captivity for centuries, with a significant rise in captive breeding beginning in the latter half of the 20th century. This trend continues to grow today. Initially, success in chameleon care meant keeping them alive for a few weeks or months. However, modern advancements have allowed some species to thrive for years...

The longitudinally lined pattern seen in Rieppeleon brevicaudatus appears to be more prevalent in neonates and juveniles compared to adults. This could be linked to an ontogenetic niche shift, where younger individuals primarily inhabit grass-level environments, while adults gradually transition to lower bush levels.

Chameleon_wifi_virus_common_cold Wi-Fi access points (APs) are devices that transmit and receive Wi-Fi signal. In other words, whenever you are accessing Wi-Fi, your device is connected to a Wi-Fi access point (wireless router). These devices are often left unprotected or have poor security in place. Until now, it was assumed that it was not...

In chameleon husbandry, extremely often, keepers and breeders swear that health issues which they want to consult and solve with a VET or in forums or FaceBook groups, appeared suddenly. They claim everything was fine for months or years and this means their husbandry must have been correct. They are badly mistaken.

Chameleons are not natural swimmers, but they can navigate through water when absolutely necessary. They seldom swim, typically doing so only when they accidentally fall into water or when they need to cross a body of water while moving to a new location.

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