https://wikimd.org/index.php?action=history&feed=atom&title=SquamataSquamata - Revision history2026-04-25T02:25:55ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.org/index.php?title=Squamata&diff=5643435&oldid=prevPrab: CSV import2024-04-22T03:42:36Z<p>CSV import</p>
<p><b>New page</b></p><div>[[File:Squamata-01.jpg|Squamata-01|thumb]] [[File:Slavoia_darevskii.jpg|Slavoia darevskii|thumb|left]] [[File:Trachylepis_maculilabris_mating.jpg|Trachylepis maculilabris mating|thumb|left]] [[File:Elaphe_quadrivirgata.JPG|Elaphe quadrivirgata|thumb]] [[File:Central_fusion_and_terminal_fusion_automixis.svg|Central fusion and terminal fusion automixis|thumb]] [[File:Number_of_snake_envenomings_(2007).svg|Number of snake envenomings (2007)|thumb]] '''Squamata''' is the largest order of [[reptiles]], encompassing [[lizards]], [[snakes]], and [[amphisbaenians]] (worm lizards), which are collectively known as squamates. This order is characterized by the presence of scales or scutes covering the body, a lack of a bony secondary palate, and a unique jaw and skull structure that allows for a high degree of mouth opening. The evolutionary history of squamates dates back to the [[Late Triassic]] period, making them a highly diverse and widespread group with over 10,000 species.<br />
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==Characteristics==<br />
Squamates are distinguished by their unique [[skull]] structure, which allows for the movement of the upper jaw independently of the skull by means of a hinge. This adaptation, along with a mobile lower jaw, enables many squamates, particularly snakes, to consume prey much larger than their heads. Their skin is covered in overlapping scales made of [[keratin]], which aids in water retention and protection from predators.<br />
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==Classification==<br />
The order Squamata is divided into three suborders:<br />
* '''[[Serpentes]]''' (snakes): Characterized by their elongated bodies, lack of limbs, and specialized jaw structure for consuming large prey.<br />
* '''[[Lacertilia]]''' (lizards): This diverse group includes species with a wide range of sizes, shapes, and habitats. Many lizards have the ability to regenerate lost tails.<br />
* '''[[Amphisbaenia]]''' (worm lizards): These are legless, burrowing reptiles, not to be confused with worms or snakes, with a distinctive cylindrical body.<br />
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==Habitat and Distribution==<br />
Squamates can be found in a wide variety of habitats, including deserts, forests, grasslands, and aquatic environments. They are distributed across all continents except [[Antarctica]], showcasing their adaptability to different environmental conditions.<br />
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==Reproduction==<br />
Squamate reproduction can be oviparous (egg-laying), ovoviviparous (producing eggs that hatch within the female's body), or viviparous (giving birth to live young). The method of reproduction varies widely among species and can be influenced by environmental factors.<br />
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==Conservation==<br />
Many squamate species are facing threats from habitat destruction, pollution, climate change, and collection for the pet trade. Conservation efforts are crucial to protect these reptiles and their ecosystems.<br />
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==See Also==<br />
* [[Reptile]]<br />
* [[Evolution of reptiles]]<br />
* [[Herpetology]]<br />
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[[Category:Reptiles]]<br />
[[Category:Squamata]]<br />
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