Whereas this polar bear might simply make a meal out of you, one chunk of his liver could be sufficient to ship you to the hospital. Liver has long been a staple in many diets. Deep-fried rooster livers are a favourite in components of pooh teddy bear online the American South. In Japan, you'll be able to order a heaping serving to of sashimi made with uncooked fish liver. As scrumptious (or disgusting) as some of these dishes could sound to you, not each chicken, fish or mammal essentially presents the perfect components for a culinary masterpiece. Journey to Germany and you can feast on conventional liverwurst. The native peoples of the Arctic have never shied away from cooking up some polar bear stew, however they've lengthy identified to avoid eating the livers of varied arctic creatures. In fact, in the event you ever have the possibility to attempt polar bear liver, assume twice -- it may be the last meal you ever eat. Western explorers, however, learned the arduous means. Perhaps probably the most horrific symptom they encountered was peeling pores and skin. Even the thick pores and skin on the bottoms of a patient's feet might peel away, leaving the underlying flesh bloody and uncovered. The worst instances ended in liver harm, hemorrhage, coma and death. These explorers suffered from acute hypervitaminosis A, a condition resulting from the overconsumption of vitamin A during a brief period of time. While milder circumstances merely involved flaking around the mouth, some accounts reported circumstances of full-body skin loss. The polar bear's liver, very like those of arctic seals and huskies, contains extremely high ranges of retinol (the form of vitamin A present in members of the animal kingdom). On the subsequent page, we'll uncover why polar bears carry round so much vitamin A of their livers and the way crucial their retinol tolerance is to their survival. Whereas some vitamins dissolve in water, vitamin A solely dissolves in fat. As a substitute, it collects in the body's filtration organ, the liver, where it can attain toxic ranges. Vitamin A is a crucial constructing block for a lot of animals. Which means that, unlike other vitamins, excess vitamin A does not exit the physique in urine. Humans solely require it in very small amounts, however it performs a vital function in eyesight, reproduction, fetal growth, development, immune response and the cellular formation of tissue. Vitamin A tolerability in people varies relying on age, gender and bodily situation. Without sufficient vitamin A in your system, you can easily end up facing signs simply as dangerous as these associated with hypervitaminosis A. Deficiencies can result in dry skin, diarrhea, blindness, progress retardation and even demise. We typically absorb it via the consumption of foods comparable to spinach, broccoli, eggs, milk and numerous meats. The truth is, their physiology advanced to tolerate so much vitamin A for only one purpose: to eat seals. Like many animals, polar bears benefit from preserving a certain amount of vitamin A of their system, however there's nothing to point they really require such giant quantities. Should you ate a bearded seal's liver, you'd endure from hypervitaminosis A, but the polar bear can tolerate and benefit from the feast. The seals retailer high levels of vitamin A with a purpose to swiftly grow and nourish their younger in a harsh, chilly surroundings. In the wild, polar bears feed virtually completely on bearded seals and ringed seals, both of which store excessive ranges of vitamin A of their livers and blubber. Remember, vitamin A plays a key function in growth and natal improvement. So if the blue plate particular at your favorite diner is ever sautéed polar bear liver, you might just wish to stick to a salad. The seals depend on this vitamin to shortly advance them through their susceptible pup phases. Discover the links on the following page to learn more about vitamin A and polar bear liver. One polar bear liver sometimes accommodates as much vitamin A as seventy nine to 115 hen eggs. That award-winning meal comes in at practically twice the tolerable higher limits of human vitamin A consumption. What does global warming have to do with the decline in the polar bear population? Brown, Dan. "Vitamin A Toxicity." Cornell College Division of Animal Science. AZA Bear Tag. "Polar Bear (Ursus maritimus)." Affiliation of Zoos and Aquariums Standardizes Animal Care Guidelines. Eliasen, Mogens. "The Dangerous(?) Vitamin A." K9joy Schooling. Higdon, Jane. "Vitamin A." Linus Pauling Institute at Oregon State College. Hicks, R. Marian. "The scientific basis for relating to vitamin A and its analogues as anti-carcinogenic agents." Proceedings of the Nutrition Society. Worldwide federation of Aggressive Consuming. Lintzenich, Barbara, et al. Brookfield Zoo Conservation Biology and Analysis Middle. Canadian Journal of Zoology. Penniston, Kristina L. and Sherry A. Tanumihardjo. Mos, Lizzy and Peter S. Ross. The American Journal of Clinical Nutrition. The University of Cambridge Dunn Nutritional Laboratory and Medical Analysis Council. Rodahl, K. and T. Moore. Slaughter, Kip. E-mail interview.
