Original source : http://www.todayifoundout.com
Posted : November 2010
Author : Daven Hiskey
Myth: Chameleons change color to match their environment.
Chameleons don’t change color to match their environment.
Rather, they change color as a response to mood, temperature, health,
communication, and light.
Now, not all kinds of chameleons have the ability to change
color and some only have limited ability for color changing; for instance, many
types of chameleons can only turn, green, brown, or gray. Others have the
ability to change to a variety of different colors including: pink, blue, red,
orange, green, black, brown, blue, yellow, turquoise, and purple. Of the ones
that can change color, they’ll often change to darker shades, when they are cold,
and will lie out in the sun during this time. Likewise, if they are hot, they
can change to lighter colors which will reflect the sun better, helping to cool
themselves off. Most color changes though are simply due to mood changes or
for communication purposes. For instance, the Panther Chameleon will change to
red and yellow when they are angry or are getting ready to attack. This serves
as a warning to other chameleons and humans to back off. Some types of male
chameleons will also change to mixed bright colors when they are trying to
attract a nearby female chameleon.
Bonus Facts:
* Those chameleons that can change to a variety of colors can
do so thanks to special cells, collectively called chromatophores. These
chromatophore cells are grouped in layers underneath the chameleon’s transparent
outer skin layer. The upper most layers contain yellow and red pigments. The
lower layers are comprised of a colorless crystalline substance and melanin,
which both are used to modify the visible color of the upper yellow and red
pigments, producing a variety of colors. In addition to that, the melanin layer
also controls the intensity of the final output color.
* Chameleons that can change color typically can change from
one color to another in less than 20-30 seconds.
* Chameleons are extremely territorial. They also typically
like to be by themselves.
* Some types of chameleons have tongues that are actually
longer than their whole bodies. These tongues can be fully extended as fast as
26 body-lengths per second, which is faster than the human eye can follow.
* Chameleons have the ability to see ultraviolet light.
* People who own particularly colorful types of chameleons can
usually quickly learn to discern the mood of their chameleons and whether the
chameleon is sick or not, simply by looking at its coloration.
~Blog Admin~
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