10 interesting facts about mosquitoes
Mosquitoes have appeared in the Jurassic period, more than 175 million years ago, so it has got from them, even dinosaurs.
There are more than 3000 species of mosquitoes that live in arctic tundra and the tropical rainforest. In this case, all kinds of mosquitoes go into an active state at a temperature of 12.7 degrees Celsius, so their greatest concentration is, of course, in warm and moist forests, swamps, dry deserts.
Peak mosquito activity accounts for dusk and night, the day they rest, hiding in the houses and plants. Day of the same mosquitoes are food for other animals.
Mosquitoes come in many sizes, up to 12.5 mm. Fossil mosquitoes reached 5 centimeters in length!
Mosquitoes do not bite and suck. 1200000 mosquito enough to drink from human whole blood. This, of course, the theoretical calculations, because until then people will die from irritation and painful shock.
Experiment in the Canadian tundra, showed that people with bare hands, legs and torso in a minute get 9,000 young mosquito bites. At this pace for two hours a person can lose half of the blood.
Only female mosquitoes bite. They bite both humans and other vertebrates, from mice to elephants and turtles, sucking their blood. Such food is necessary for carrying female offspring. Some species of mosquitoes can produce offspring without the prior suck blood, but at the first opportunity they did not reject it (kind of Culex). One drop of blood gives life to thousands of mosquito eggs. The most "delicious" for mosquito blood from people with first and second group of blood, as well as children.
Males are not involved in mosquito sucking blood - they feed on plant food and nectar.
Mosquito sting looks simple, but under high magnification becomes a complicated design. It consists of six parts - two tubes, saliva and feed, surrounded by two sharp jaw and two "scalpels" to pilobraznymi teeth. All 6 parts are enclosed in a protective shell over the entire length. At a sting sting plunges into the skin a few millimeters until it reaches the small blood vessels.
Do mosquitoes have olfactory and termochustvitelnye bodies located on a pair of antennae and three pairs of legs, which send them to the victim, pretending to increased concentration of carbon dioxide, heat and sweat.
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