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| Lizards | ||||||||||
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Coachella Valley Fringe-toed Lizard | ||||||||||
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| Many, see text. |
Lizards are reptiles of the order Squamata, which they share with the snakes. They are usually four-legged, with external ear openings and movable eyelids. Species range in adult length from a few centimeters (some Caribbean geckos) to nearly three meters ( Komodo dragons).
Some lizard species called " glass snakes" or " glass lizards" have no functional legs, though there are some vestigial skeletal leg structures. They are distinguished from true snakes by the presence of eyelids and ears.
Many lizards can change color in response to their environments or in times of stress. The most familiar example is the chameleon, but more subtle color changes occur in other lizard species as well (most notably the anole, also known as the "house chameleon" or "chamele").
Lizards typically feed on insects or rodents. A few species are omnivorous and can also eat plants. Only two lizard species are venomThis article is about the toxin. For other meanings, see Venom (disambiguation Venom is a general term for the toxins used by several groups of animal species, for the purpose of defense and hunting prey. Most widely known are snakes, some species of whicous: the Mexican beaded lizard and the Gila monsterThe Gila monster Heloderma suspectum is one of the two known species of venomous lizards. The other is the Mexican beaded lizard. It lives in the deserts of the southwestern USA and northwestern Mexico. The Gila monster is a heavy, slow moving lizard, up, both of which live in northern MexicoThis article is about the country Mexico. For other meanings, see Mexico (disambiguation The United Mexican States or Mexico ( Spanish: Estados Unidos Mexicanos or Mexico regarding the use of the variant spelling Mejico see section The name below) is a co and southern TexasTexas joined the United States of America as its 28th member state in 1845. It has the postal abbreviation TX . The state name derives from a word in a Caddoan language of the Hasinai, tejas meaning friends or allies Spanish explorers mistakenly applied t. They are typically not hazardous to humans as their poison is introduced slowly by chewing, rather than injected as with most poisonous snakes.
Other small lizards are harmless to humans (most species native to North AmericaNorth America is the third largest continent in area and the fourth ranked in population. It is bounded on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the south by the Caribbean Sea, and on the west by the North Pacific Ocea, for example, are incapable of drawing blood with their bites).
Most lizards lay eggs, though a few species are capable of live birth. Many are also capable of regenerationRegeneration is the ability to restore lost or damaged tissues, organs or limbs. It is a common feature in less complex creatures, such as worms, but is very rarely observed to any major degree in higher animals. Nevertheless, even humans possess some deg of lost limbs, such as tails.
Lizards in the Scincomorpha family, which include skinkSkinks Coal Skink : Animalia : Chordata : Reptilia : Squamata : Sauria Scincidae Genera many—see text Skinks are reptilians belonging to suborder Sauria and there to the superfamily Scincomorpha the same as the true lizards. The family Scincidae is the las (such as the blue-tailed skink), often have shiny, iridescent scales that appear moist. But like all other lizards, they are dry-skinned, generally preferring to avoid water (though all lizards are able to swim if needed).
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