September 04, 2016 23:11

Why a chameleon changes color ?

Chameleons belong to the family of the suborder of lizards scaly squad.His name was in honor of the mythical creature that was able to completely change your look.

The average length of the animal is about 30 centimeters, some species much less (3-4 cm), but there are large (up to 60 cm).The head resembles a helmet, which is slightly elevated occipital part. often decorated with bumps, horns or crests.It is worth noting that all these formations are almost always developed only in the males.

limbs long enough in relation to the body, fingers which grow in different directions and form a sort of claws, which easily covers the reptile branch.The tail is long, tapering at the end is often wrapped in a spiral.The tail of the lizard can cling to tree branches.Unusual structure of the eye - they are covered with fused centuries in which there is an opening for the pupil.Incidentally, the eye can move in different directions independently of one another - is important when animal insect prey.

While hunting chameleons tend to sit still and only move pupils.But almost in sight of the insect appears as a breath comes out a long tongue with a suction cup on the end of that captures prey.The entire discharge process language and its return takes place at no more than half a second.

Meet these reptiles can be in Africa, Southern Europe, South India, in the islands of Madagascar and Sri Lanka, in Hawaii, and so on.They prefer to inhabit savannas and tropical forests, although sometimes they can be seen even in the steppes and deserts.

Well, now we're getting to the fun part.Chameleons have received great popularity thanks to unusual abilities - they can change not only the color of the body, but also the image.The secret lies in the features of the skin structure.Thus, the outer fibrous and in the deeper layer of the skin contains special cells, the chromatophores, which contain several grains of pigments: yellow, red, dark brown and black.When shoots begin reducing these cells, there is a redistribution of grains of pigments, with the result that their concentration increases and reptile skin becomes lighter color (usually white or yellowish).If there is a reduction of darker pigment, the lizard is painted in a darker shade.Since cell reduction takes place at different levels, the combination of pigments can lead to a variety of shades that we see in the animal's skin.

In order to change the color, lizard requires a couple of seconds or even less.Changing the hue occurs under the action of an external stimulus, may be Kojima weather or temperature, and as a result of fear or hunger.The most common chameleon adjusts its color under the environment, concealing themselves from predators.However, according to recent research, it changes its color to communicate with members of their family