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
How much do we know about Sea serpents?
And that not having very many species and subspecies.They live in the tropics and subtropics,two oceans, the Indian Pacific,from Japan to the North,to Tasmania and New Zealand in the South,from Africa,California and Peru in the East.In the Atlantic there is not one species of sea snakes.Their habitat is rocky coasts of Islands,algae and sea grass.
Sometimes there are hundreds of thousands.They are woven with tangles and prefer to lie on the bottom.Some species of snakes feel comfortable as in seawater and in freshwater,in rivers so a lot of them.On the rivers they rise to the top for hundreds of kilometers,but then still down towards the sea,the sea is the source of their food.
In food they use smaller fish and various inhabitants of the deep sea.Some snakes are able to swallow food bigger than the weight of the snake several times.Only one sea snake that has the exotic name Bonito,lives apart for many hundreds of kilometers from the coast.She hunts only when on the sea surface calm,the fish rises to the top and at this point,palamida begins the hunt.
The venom of this Continue reading
In theory snakes in India are very even, a year from snake bites killed 50 thousand people. It is in a snake were the cause of my unwillingness to go to India, because it seemed to me that there are snakes everywhere: hiding under every stone and hanging on each branch.
Now, the first four-month trip to India not a single snake on the way I came across. It was the jungle and in various other habitats of snakes. Okay snake I have not met a loving person not to wear glasses. But the conversations with other travelers revealed the same fact: a snake in India is necessary to search for specially. Of course, some “lucky” and those who consciously sought out. But mostly snakes nobody saw.
The fact is that snakes don’t eat people, and catch mainly mice and rats, so the easiest way to come across a poisonous snake in the rice or barley field. It is therefore logical that one of those 50 thousand people that die every year from snakebites in India, almost all farmers, as the agricultural activity attracts creeping reptiles, but Indian doctors. which can inject anti-typhoid serum in the field about a remote village difficult to find, here and dying peasants. If the snake the snake will bite You and it will be given proper medical treatment, chances of survival are very high. The question is who will bite.
Assessment of the risk of being Continue reading