Word: miceli
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Dates: during 1940-1949
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...over the U.S. last week scientists were hunting mice. The search was on for brown mice, white mice, yellow mice, mice with hairless skins and mice with peculiar, deformed tails. The leading U.S. mouse pool had been destroyed...
When the Roscoe B. Jackson Memorial Laboratory at Bar Harbor, Me., was gutted by forest fire three weeks ago (TIME, Nov. 3), some 90,000 pedigreed breeding mice were caught in the flames. They represented 30 carefully bred strains, each with special qualities. Some were valuable because they were susceptible to polio, others were prone to nervous crises. Certain yellow mice (which grow fat with age) were used in the study of fatty (liposarcoma) cancers. Certain long-cherished strains were used in educational institutions all over the country to illustrate the Mendelian laws of inheritance...
After the blackened buildings cooled, Director Clarence Cook Little walked sadly among the cages of roasted or suffocated mice. A few "little fellows" looked up with frightened eyes, among them two elderly, fat yellow mice. But survivors were few. Out of the 90,000, only 55 were alive...
Being well-fed had one notable effect: the hungry mice were less fertile than the well-fed. But the tables were turned when the hungry group was switched to a full diet. At an age when the well-fed, senile mice had almost stopped having offspring, the newly fattened mice began to reproduce more rapidly than the well-fed ever...
Result: the hungry mice, though smaller than the well-fed mice, were more active, hardier, developed less cancer, generally lived much longer. (None of the well-fed mice lived over a year and a half; some of the underfed lived well over two years...