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Common Wall Lizard Video Stock Footage
The common wall lizard is a small, thin lizard whose small scales are highly variable in colour and pattern. Its coloration is generally brownish or greyish, and may occasionally be tinged with green. In some individuals, the row of spots along their backs may form a line, while others may have a reticulated pattern with dark spots on the side and scattered white spots that can be blue in the shoulder region. The tail is brown, grey or rust in colour, and may also have light bars on the sides. The belly region has six rows of larger rectangular scales that are generally reddish, pink, or orangish. Common wall lizards may also have dark markings on the throat. This lizard has six distinct morphological forms which are identified by the colouration of its throat and underbelly. Three of these are pure morphs consisting only of solid colours on their scales: white, red (orange) or yellow, and three other morphs are distinguished by a combination of colours: white-yellow, white-red and yellow-red. Susceptibility to infection also varies between morphs, red and yellow-red morphs are the most susceptible to infection by the haemogregarine parasite, a common parasite for these lizards. White morphs are the most resistant to this parasite and the yellow morphs are at an intermediate value of immune resistance and intensity. Certain traits can also lead to a variation in snout-vent length in each of these morphs. For example, in orange morphs, sexual selection favours larger m...
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