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Lemming, any of several small rodents, family Cricetidae (order Rodentia), found primarily in north temperate and polar regions of North America and Eurasia. Lemmings are placed in four genera: Dicrostonyx (collared, or Arctic, lemmings); Lemmus (“true” lemmings); Myopus (the wood, or red-backed, lemming); and Synaptomys (bog lemmings). Lemmings are short legged, with small ears and long, soft fur. They are 10 to 18 centimetres (4 to 7 inches) long, including the stump of a tail, and are grayish- or reddish-brown above, paler below. The wood lemming (Myopus schisticolor) of the Old World has a reddish back. The collared lemmings of the Arctic regions of the U.S.S.R. and Canada, have dark back and face stripes, except in winter, when their fur is completely white. Lemmings feed on roots, shoots, grasses, and other plant material, and live in burrows or rock crevices. They breed from spring to fall, the female producing up to nine young after a gestation period of 20 to 22 days.

Lemmings are noted for the regular fluctuations of their populations and for their periodic migrations. The population “explosions” (occurring about three or four years apart in the genus Lemenus) are not completely understood.

Factors influencing population change include the following: natural increase in numbers after the last migration and its subsequent population decline; reduction in predators resulting from the decline in lemmings, their prey, after a migration; and optimal breeding conditions for lemmings.

The migrations of lemmings tend to occur in spring and in fall. The movements of the Norway lemming (Lemmas lemmas) are the most dramatic, as many of the migrants may end by drowning in the sea. The causes of lemming migrations are unknown, but the major factor seems to be related to seasonal changes in habitat. The animals tend to follow paths and roadways established by people or animals, and they apparently move outward in all directions from a central area. Lemmings hesitate to enter water and generally try to avoid swimming across rivers and other bodies of water, seeking land crossings whenever possible. They do not, as is popularly supposed, plunge into the sea in a deliberate, suicidal death march. Ivan Prostorovski

The Tissue Culture Microscopes is important tools in the world of science, technology, biology, chemistry, and physics, and almost every branch of science that requires the expertise of a microscope. Among the necessity that requires the need of a microscope is the fact that certain minute organisms are never visible in the eye of a human, thus, the need for microscope is very much high. In this case, the place of microscope in the heart of everyone is very much indispensable and no wonder, no other instrument will be able to replace, at least to parallel, the present place of a microscope in the heart of every scientist, student, expert, inventor and many more.

Microscope comes in different type. Through the advent of time, more and more kinds of microscope have sprouted, each having a specific function. Through the course of time, more and more microscopes were invented by a lot of people. What a simple microscope invented by lowly glass makers in the 17th century has now evolved into becoming a clan of microscopes with different functions, belonging in different types and family.

We have the simple and basic monocular microscope which eyepiece is only one. We also have a binocular microscope which further comes into different kinds, such as the stereoscopic binocular microscopes, binocular tissue microscopes and many more.

As of this moment, our featured product is the tissue culture microscope, a specialized microscope used while you are studying histology and in culturing and in reproducing the tissue. The best thing about the tissue culture microscope is that it is inverted.

When we say inverted, the objective of the microscope always faces upward. Why? This is because the right way of viewing a specimen in above the Petri dish where the specimen is being placed. All the objectives are structured in a long pattern. This is to allow the light to pass through below the glassware which holds the tissue culture specimen.

When you view a tissue, especially when the illumination applied to the microscope is a brightfield one, the specimen would appear to be translucent. Another model of a tissue culture microscope has phase contrast illumination. The phase contrast tissue microscope contains an inverted tissue microscope model having the capability of viewing the specimen to like that of a fluorescence microscope. That is why more and more university students of biology, professors, researchers, scientists, and other microscope enthusiasts are choosing this kind of microscope especially in their studies about the tissue. Likewise, the tissue microscope is also gaining prominence in hospitals, clinics, and health care units. If ever you want or you decide to buy whole, brand new unit of a Tissue culture microscope, don’t hesitate to call us. Likewise, you may log in at www.tissueculturemicroscopes.com. We also offer you a much-needed advice should you need further information about choosing the right microscope. Our skilled, well trained staff is more than willing to assist you as they are equipped with all the knowledge and idea about the game of tissue culture microscopy. peter

TrueVision Microscopes, Inc. is a microscope-dealing store based on St. Louis, Missouri. The very essence of this company is the dealing and selling of first-class, both low- and high- powered microscopes of complex kinds and types. Not only does TrueVision Microscopes Inc. sell microscopes. This company too sells a lot of microscope accessories, like microscope lenses, microscope slides, USB for microscopes, and even cameras for microscopes.


No other microscope company offers any better services in terms of microscopes and microscopy than TrueVision Microscopes, Inc. Here is a business so dedicated to this profession that the workers and the owner all give all of their heart for the betterment of the service that they are offering to their customers. That is why; this St. Louis, Missouri-base company is growing both in prestige and in size as one the fledgling and leading microscope dealing company not only in the continental United States but also through the world, spanning seven seas and five continents.

The success of TrueVision Microscopes as a leading name in this trade is not only based on the efforts of a single person, but through the concerted efforts of many workers who are trying their best to give utmost and excellent services as demanded by their clients. They simple never say no with regards to the needs of their customers in terms of microscopy and microscopy equipment. At the very moment a customer buys a product, TrueVision Microscopes employee’s waste no time in packing and delivering it to the right destiny and this happens in no slow pace.

The essence of delivering products on time is planted into their minds, thus, they have a strong, quality customer service, enabling them to speedily ship the cargos in the nick of time.

TrueVision Microscopes, Inc., as a 21st century company which adheres to the computer age, has its own email address and website where you can comfortably visit, view, and select the product of your choice. Sight-seers are also allowed to view their product so as to help them gain knowledge from the information displayed together with the microscopes pasted on screen. The companies email support is sales@truevisionmicroscopes.com. The email support receives and dispatches thousands of email a day, a proof at how zealous people are in having a microscope.

Microscopes offered here at TrueVision Microscopes vary from the simple, basic one which comes in very affordable and reasonable prices to more professional, high-powered microscopes, in demand to both the professionals and scientists, like tissue culture microscopes, ENT Microscopes, blood microscopes, and many more.

For those are very fast-paced and high-tech, we also sell USB Microscopes to enable the users to attach what they see to the screen of their computer and view it at a more comfortable means.

So what are you waiting for? Don’t wait for this opportunity to pass from your grasp. Email or visit our site at the comfort of your computer. We have excellent products for you, and we have modern, latest ones which I am sure will be very enticing to your taste! peter