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Panther chameleons are occasionally kept as pets due to their striking coloration. While they are easier to care for than many other species of chameleon, panther chameleons are generally considered challenging to keep in captivity. [21] Wild panther chameleons are a short lived species; few animals survive beyond a year of age in the wild.
Chameleons have the highest magnification (per size) of any vertebrate, [41] with the highest density of cones in the retina. [42] Like snakes, chameleons do not have an outer or a middle ear, so there is neither an ear-opening nor an eardrum. However, chameleons are not deaf: they can detect sound frequencies in the range of 200–600 Hz.
People often think chameleons change their colour for camouflage so to blend into the environment, but this is false. [22] Chameleons change colour as a way of expressing mood and communicating as well as to thermoregulate, turning a darker colour to absorb more heat or very pale pastel colours to reflect light and absorb less heat.
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Chameleons have always been a staple of the wildlife trade, with the United States in particular accounting for 69% of chameleon imports from 1977 to 2001. [6] As importing the chameleons from their native countries can be costly, some people have decided to release chameleons into the wild on purpose, intending to let them reproduce and then recapturing them.
Lizard is the common name used for all squamate reptiles other than snakes (and to a lesser extent amphisbaenians), encompassing over 7,000 species, [1] ranging across all continents except Antarctica, as well as most oceanic island chains.
Trioceros melleri, close-up of head. The largest of the chameleons from the African mainland, adult T. melleri generally are 30–61 cm (12–24 in) in total length and 300–500 g (11–18 oz) in weight, but exceptionally large individuals have reputedly been up to 76 cm (30 in) in length and 600 g (21 oz) in weight.
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