The grass snake is a snake that I wanted to photograph for some time and finally frequenting an area conducive to the kind I could find copies of various ages. The grass snake (Natrix natrix ) is one snake named commonly "water" next to the viper snake. Yet it is the necklace which is more dependent on this environment. In the Iberian Peninsula shows a subspecies of this snake, Natrix natrix the sbsp astreptophora characterized by the absence of collar marking in adult and because the orange-red iris.
Youth Individual grass snake (Natrix natrix ) As you can see the juveniles of the grass snake have a very clear marking collar normally surrounded by all dark and generating a contrast very characteristic. The man in the photograph would have 1 cm in diameter and 20 cm in length.
As they grow the white collar is becoming less clear. These are species that feed on amphibians, fish, mammals ... but the fish is in the best highlights many of the fishermen's observations have snakes on the shore holding a trout while it jumps from one place to another trying to escape.
subadult specimen grass snake (Natrix natrix ) As can be seen in this sub-adult (70 cm approx.) Red iris is distinctive and has clear marks in the area of \u200b\u200bthe necklace. It is curious that the ability of these snakes to project the lateral muscles of his body as "wings" to facilitate swimming. Snakes are almost never bite the man, in the while I was with these snakes never opened his mouth with the intention of biting. His defense is done mainly in the dead, they emit a strong odor and unpleasant down the drain and spit and swelling to resemble a larger size. Another curiosity is that can make your head has triangular appearance to resemble a snake and so scare some predators.
subadult Natrix natrix As many of you already know the snakes stick out their tongues to capture chemical stimuli in the environment. Arguably, the snake "smell" in the language.
also photographed an adult of about 1 m in length. I have seen professional literature on the peninsula there are few copies in excess of the meter, while in Europe we can find individuals of up to 2 meters. The day had been rainy and overcast until the sun rose, a condition that took advantage of numerous specimens of this species that I met that day to keep warm.
Adult grass snake (Natrix natrix ) The dorsal scales of the snakes of the genus Natrix are strongly keeled, ie have a very pronounced bulge as a keel also helps in swimming. The following image shows the character quite well.
Natrix natrix front Finally end with something that usually say whenever I do a post about an animal of this kind. Guess who read the blog that you need not tell you but it never hurts. The snakes are beneficial and necessary animals on ecosystems (in this case water). Kept in line by animals like mice. Therefore request that does not involve the resource easy to kill one of these animals by the simple observation that is poisonous or because it disgusts me because that is no excuse. A snake will never attack unless that looks down, yet few species are considered to be "aggressive." The water snake is not poisonous or aggressive. Despite its size is completely harmless as the solution Choose not easy to crush the head and choose the smart solution. We're still finding species like smooth snakes, viper, a necklace, resolutions, lizards, ... dead man's hand and without any reason and is quite sad because it often involves ignorance of what surrounds us and makes one wonder. I conclude with a collar adult photography. A greeting and I hope you liked the entry.
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