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A pair of Mexican beaded lizards at the Buffalo Zoo: The specimen on the right is in the process of shedding. The beaded lizard is a specialized vertebrate nest predator, feeding primarily on bird and reptile eggs. A semiarboreal species, it is found climbing deciduous trees in search of prey when encountered above ground. [14]
The Helodermatidae or beaded lizards are a small family of lizards endemic to North America today, mainly found in the Isthmus of Tehuantepec in Oaxaca, the central lowlands of Chiapas, on the border of Guatemala, and in the Nentón River Valley, [1] though they were formerly more widespread in the ancient past.
The genus Heloderma contains the Gila monster (H. suspectum) and four species of beaded lizards. Their eyes are immobile and fixed in their heads. [2] [3] The Gila monster is a large, stocky, mostly slow-moving reptile that prefers arid deserts. Beaded lizards are seen to be more agile and seem to prefer more humid surroundings.
The checkered whiptail grows to about 4 inches in length. Their pattern and base coloration varies widely, with brown or black blotching, checkering or striping on a pale yellow or white base color. Their rear legs often have dark spotting, and their underside is usually white with dark flecking on the throat area.
The Guatemalan beaded lizard (Heloderma charlesbogerti), also called commonly the Motagua Valley beaded lizard, is a highly endangered species of beaded lizard, a venomous lizard in the family Helodermatidae. The species is endemic to the dry forests of the Motagua Valley in southeastern Guatemala, [5] an ecoregion known as the Motagua Valley ...
Western Mexico whiptail are striped lizards, which tend to be active foragers, constantly moving around than lizards with cryptic patterns. [13] It records very high moves per minute or percent time moving values. All whiptail lizards in the genera Aspidoscelis are active at body temperatures between 37 and 40 °C (99 and 104 °F).
He suspected that the lizard might be venomous due to the grooves in the teeth. [8] The first drawing of a Gila monster by Baird, S. F. (1857) [8] The Gila monster is the largest extant lizard species native to North America north of the Mexican border. Its snout-to-vent length ranges from 26 to 36 cm (10 to 14 in). The tail is about 20% of the ...
The eastern bearded dragon (Pogona barbata), also known as common bearded dragon or simply bearded lizard, is an agamid lizard found in wooded parts of Australia. [ 1 ] [ 2 ] [ 3 ] It is one of a group of species known commonly as bearded dragons .