Biologist Marshall Mackey (Marshall McCue ) from University of Arkansas (University of Arkansas ) undertook a study of the biological mechanism that enables some snakes to starve for up to two years.
For that, he spent 168 days observed 62 individuals of three snake species (distant relatives): Royal Python, white snake and Texas gramatnica.
Macku followed physiological, compositional and morphological changes of the snakes and found that snakes can reduce their metabolic rate by 72%! For this they use a special survival strategy in the absence of food, is not peculiar to any of vertebrates.
The rate at 72% is shocking, as “snakes and so consume little energy, and we still didn’t know how they manage to reduce energy consumption to such a low level”, ” says Marshall.
What’s even more amazing is the fact (also found by Makku) that snakes on loss from 9.3% to 24.4% of initial body weight continued to grow in length (especially increased size of the head – just like those snakes).
Day 168 to study rattlesnakes showed a record decline in the intensity of metabolism. He was only 28 per cent. Snakes reduced the metabolism to the bar in 55%. At the same time, the pythons, the maximum decrease in the intensity Continue reading
Regional assemblages of species of poisonous snakes in different geographical areas may vary depending on your location. In each location the major efforts must be made to be aware of the presence of toxic species, as they are not the dominant species and represent a danger to humans. In addition, they are much better known under local names or simplified compared to the more common and comparatively less dangerous individuals. In Panama, the special distribution received three main families of poisonous snakes, namely: alkoholowe vipers, coral snakes and sea snakes.
Only in the Western hemisphere of the Earth all the vipers are so-called pits, which represent a deepening from the outer side of the upper jaw, between the nose hole and eye, which indicates zoologist Harold Trapido, is sensitive to changes in the ambient temperature of the body. Thanks to its incredible sensitivity, this hole helps to locate and attack warm-blooded animals (of course, when the predator is close enough to potenitally victims). It is considered, among other things, that such amharinya bodies along the lower jaw perform the same functions and have common Boas (or devouring snakes). Even assuming that such a snake is removed and the language she blinded with blackened collodion, it will still be able to produce its fatal bite, aiming for an electric bulb, covered with Continue reading
Sensational news environment: in the area Askochensky sources in the North-Western coast of Kunashir were found very unusual for these places fauna – poisonous snakes.
Individuals Eastern Copperhead snake was found by staff at the reserve “of the Kuril” during one of the planned expeditions for the purpose of monitoring the environment.
According to one representative of the reserve, candidate of biological Sciences Yuri Chests, this type of snake was spotted in one of the neglected areas of Kunashir. The place that is home to snakes, is quite inaccessible to humans and, therefore, extremely attractive to reptiles. Discovered of fauna in one of the seaside terraces, which rises above the sea of about 20-30 meters. Only managed to see five poisonous animals.
The reserve staff immediately decided that a new instance needs to be carefully examined. For these purposes, to process the specialist was involved in Copperhead, candidate of biological Sciences Nikolay Orlov.
The scientist immediately said that throughout the history of research of the Kuril fauna has been done quite a lot of attempts to find a Copperhead on the Islands of Shikotan, Kunashir and Iturup. However, neither during the Soviet nor in the period Continue reading