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
Why are people scared of snakes? Why is it so contemptuously call them reptiles, blaming in all sins possible – from the first, inherited from eve and Adam? It’s not only in pathological mobility, visual “slipperiness” and a cold glance, which cause many instinctive disgust. The fact that some of these reptiles to humans are a real threat. Perhaps the fear of the snake – an echo of the genetic memory of those times, when there were no vaccines and medications, so almost every bite of poisonous snakes was deadly for the victim.
To be honest, there’s not that snake would dare attack the person itself – usually they attack only in self-defense. Although there are a particularly aggressive individuals who don’t need any special occasion to show your teeth ” in the full sense of the word. But the anger – is one thing, and the degree of toxicity – more. Today, when there are medications help the bitten people, some “bastards” ceased to be so dangerous, though the joy of a close acquaintance with them is ever going to do. But what kind of snake is anyway to bypass the tenth road, if you do not want to prematurely part with life?
It is widely known that not one snake on land in its ability to kill cannot be compared with the inhabitants of the ocean. The so-called sea serpent, which is often compared to the Cobra, more poisonous than Continue reading
In the legends of ancient China tells the story of that dragon once there was a huge sea snake or a giant boa constrictor, swollen from the sea water in the Yangtze river.
Live large Boas and Kharkov zoo. Although to see their usual Kharkiv is unlikely. For the past four years as the entrance to the terrarium of the zoo is closed — emergency building on the brink of destruction. The roof of the cage, consisting of concrete slabs started to crumble. And simple repair in this case is not enough.
Once there was an aquarium for fish the local waters, says head of the Department of amphibians and reptiles of the zoo Olga Kalinovskaya, and when in 1995 marking the centenary of the zoo, was transformed into the current terrarium. Now the zoo management plans to restore the aquarium, and over it to build the pavilion-a terrarium. It remains only to find the money to build.
Thus it happened that now to exhibit a collection of snakes for the zoo anywhere. New housing received only crocodiles, lizards and small amphibians in the premises of the recently renovated monkey house. The rest live in various closed the eyes of the visitors spaces.
In Kharkov zoo today is home to 20 snake species, only about 200 individuals creeping. All of them are tropical snakes that were bred in captivity.
Creeping the oldest inhabitant of the zoo — a female Continue reading