White Mouse Laboratory Rat Specimen in 110x43x25 mm Clear Block Learning Aid For Sale



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White Mouse Laboratory Rat Specimen in 110x43x25 mm Clear Block Learning Aid:
$17.99

Mouse Specimen Real White Mouse (Albino Wistar Rat "Laboratory Rat" –Rattus norvegicus) permanently encased in clear lucite material. The specimen is crystal clear, indestructible and transparent. Safe, authentic and completely unbreakable product put Mouse right at your fingertips! Anyone can safely explore the Mouse from every angle. It is clear enough for microscope observation. Length of the Mouse from head to bottom is 6.7 cm (2.6 inch). Size of the acrylic block is 11x4.3x2.5 cm (4.3x1.7x1.0 inch). Each one comes with a cardboard box for easy storage. Weight of the lucite block is 150 g and 180 g with packing box. It is an ideal learning aid for students and kids and also a very good collectible item for every body. This is a handmade real animal specimen craft. Each one will be a bit different (specimen size, color and posture) even in the same production batch.The pictures in the listing are just for reference as we are selling multiple pieces with same pictures. *** Albino Wistar Rat (Laboratory Rat) –Rattus norvegicus Order: Rodentia Family: Muridae Subfamily: Murinae Genus: Rattus Species: norvegicus A laboratory rat is a rat of the species Rattus norvegicus (brown rat) which is bred and kept for scientific research. Laboratory rats have served as an important animal model for research in psychology, medicine, and other fields. Laboratory rats share origins with their cousins in domestication, the fancy rats. In 18th century Europe, wild Brown rats ran rampant and this infestation fueled the industry of rat-catching. Rat-catchers would not only make money by trapping the rodents, but also by turning around and selling them for food, or more importantly, for rat-baiting. Rat-baiting was a popular sport which involved filling a pit with rats and timing how long it took for a terrier to kill them all. Over time, breeding the rats for these contests produced variations in color, notably the albino and hooded varieties. The first time one of these albino mutants was brought into a laboratory for a study was in 1828, in an experiment on fasting. Over the next 30 years rats were used for several more experiments and eventually the laboratory rat became the first animal domesticated for purely scientific reasons. Domestic rats differ from wild rats in many ways: They are calmer and less likely to bite, they can tolerate greater crowding, they breed earlier and produce more offspring, and their brains, livers, kidneys, adrenal glands, and hearts are smaller. Scientists have bred many strains or "lines" of rats specifically for experimentation. Most are derived from the albino Wistar rat, which is still widely used. Other common strains are the Sprague Dawley, Fischer 344, Holtzman albino strains, the Long-Evans, and Lister black hooded rats. Inbred strains are also available but are not as commonly used as inbred mice. The Wistar rat is currently one of the most popular rat strains used for laboratory research. It is characterized by its wide head, long ears, and having a tail length that is always less than its body length. Payment Payment: By Paypal Shipping cost Free shipping cost. We send the goods to USA, Canada, UK, Australia, New Zealand, EU countries and some other European and Asian countries by E-express, a kind of fast postal service by Hong Kong Post. It usually takes about 6 to 10 working days for delivery. We send the goods to other countries by registered airmail and will take about 8 to 14 working days for delivery. Return policy Returns: We accept returns with any reason in 30 days. Messages We will answer buyer messages within 24 hours during working days. Copy rights of All right reserved.


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