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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. [43] Chameleons can see in both visible and ultraviolet light. [44]
The chameleons in general use their ability to change their coloration for signalling rather than camouflage, but some species such as Smith's dwarf chameleon do use active colour change for camouflage purposes.
As a result of this nodal point separation, images of objects move more or less on the retina based on their distance from the chameleon. The position of an image on the retina is the "primary means by which chameleons judge distance." [3] Therefore, the rotation of one eye informs the chameleon of the "relative distances of different objects."
Veiled chameleons also have a hooded head. Their hooded head helps chameleons collect water. When a droplet collection is on top of a chameleon's hood, the droplet slides down from the hood into the chameleon's mouth. [29] Veiled chameleon's hood also aids in reproduction. Males have a pointer hood than females.
Camouflage is an exciting animal adaptation that allows many different types of animals to blend in with their surroundings. The chameleon is one of the most recognizable animals that camouflages ...
Many assume the color changes undergone by the chameleon are a result of its attempting to camouflage itself, when in reality the chameleon changes its color as a response to light and temperature stimuli and as an expression of its emotions (like chameleon body language). Often when caught for analysis, the chameleon may turn a dark color.
Elephants have massive ears to help regulate their body temperature. They have huge blood vessels in their ears. The blood vessels are large and quite visible on the backs of the elephant’s ears.
There is a threat of devastating impact by introduced invasive Jackson's chameleons to native ecosystems in Hawaii. [13] They were found with mainly insects in their stomachs: planthoppers Oliarus, grasshoppers Banza, casebearing caterpillars Hyposmocoma, beetles Oodemas, dragonflies Pantala [13] and others. [15]