Venomous snakes

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Regulation of heat exchange in the serpent is carried out by means of the special mechanism. They are called potentially warm-blooded. Body temperature serpent rises when they are activated: during the night, the transition from rest to activity, the snake becomes warm-blooded and increases the temperature of the soil surface. Thus, thermoproteus, i.e. preferred ambient temperatures, increases significantly (I. I. Kozacki, A. M. Zakharov, 1970), so the snake lead an active way of life at dusk, when the temperature decreases the environment. With a sharp rise in temperature they fall into a stupor or move in search of asylum. F. W. Sharifov (1970) observed change daily activity lebetina Viper living in Shirvan steppe of Azerbaijan, during the year: in January, February and March when the air temperature is +7-9°With active from 13 to 15 hours; in the beginning of April from 12 to 17 h; in may, even in overcast and cloudy all day; in June - from dawn to dark, in the hottest time hiding in the shadows, from 6 to 11 hours and 16 to 19 h falls on the open place; in July - August - in the morning and evening; in September, hidden in the trees, vineyards, sometimes near the river; in the first decade of October of active from 9 to 18 hours, the second - from 11 to 17 h, hunting only during the day, and in November and December - near the holes. In the cold season of the snake hibernate. For hibernation using the burrows of rodents, going to a depth of 70-90 cm, where the frost the temperature does not fall below +9 degrees C. Metabolism slows to a crawl. They live at the expense of fat IB belly.
Viper living beyond the Northern polar circle, are awake 3 months (with E. N. Pavlovsky, 1923); in Nakhichevan Autonomous Republic - more than 6 months, the rest of the time spend in hibernation. According to the observations of A. M. Alekperov (1970), vipers in Azerbaijan active from early April to early October; in Tajikistan snake hibernate from December (N. 3. Monakov, 1953), in the Nakhichevan Autonomous Republic, as in many areas of Azerbaijan, Armenia and Central Asian republics (with the difference in 10-15 days) - in early November.
The awakening of the serpent is due to climatic conditions of the area. In early warming output snakes out of hibernation noted in early February (Duguy, 1958). Ordinary adder, living in the valley of R. Lena, becomes dormant in late August - early September; awakens in late April - early may. M. P. Raspopov (1935) observed a revival of snakes in Moscow region (metro Balashova, Sunflower and katuar) mainly in the early spring. With early onset of heat in Azerbaijan in 1954-1955 we watched the snake basking in the sun, in the pasture, about Beyukduz 7 March. The cases of bites noted in the 20's days of April and in early may. Mass steppe Viper in Uzbekistan and Kazakhstan in 1950 was March 10, mating - April 3, and in 1963, in connection with frosts, they went from mid-April to mid-may; mass mating were observed on April 25. On /floodplains R. Amu-Darya output lebetina Viper in 1966, was observed on February 18, and in 1954 - March 11. In the area of Tahtabazar (Turkmenistan) in 1966 Cobra found 27 April 8-9 hours and 17-19 h, and in Tajikistan in April-may, when the day temperature 25 - 26 C (C. M. Makeev, 1970).
In the first days after the revival, despite low activity of snakes, don't exclude the possibility bites. In this regard, the meeting with a snake in any time of the year you should use extreme caution. Monthly establishing time winter sleeping and summer depression serpent is of great importance in the prevention of their bites.