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Information
Chameleon
is the common name for certain lizards that are well
known for their ability to change colors. The chameleon
changes color when it is frightened, under stress, or
because of changes in light, temperature, and other
environmental changes. The color change is caused by
hormones that affect certain pigment-containing cells
in the skin of the chameleon. Contrary to popular belief,
its color doesn't always change to match its surroundings.
The chameleon has a remarkably long, sticky tongue,
which is very useful in obtaining food. A chameleon's
tounge darts into the air to catch insects. Its body
is unusually shape and most chameleons are specially
adapted to living in trees. The chameleon has long,
thin legs that raise it from the ground and its toes
are divided into opposable sets of two and three digits
that make it easier to grasp branches instead of clinging
to them with claws. The strong, curled tail is adapted
to grasping. Many chameleons have large domed heads,
and males may have as many as three horns which are
sometimes used for combat. The chameleon has a short
neck that is of limited mobility; however, the eyes
are big and can move independently of each other in
many directions. The chameleon has no external tympanic
membrane. Chameleons range in size from a few centimeters
to 63 cm (25 in). More than 100 species of chameleons
exist.
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