Word: preys
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Dates: during 1950-1959
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...live vaccines must be made with viruses that have no power to cause disease. A few occur that way in nature. Most are formerly virulent strains that have been "attenuated" by growing them in animals (or eggs) that are not their natural prey. These must then be tested to make sure that after being allowed to grow in the human digestive system they do not revert to virulent form. No such reversion to type has been detected in tests that have now covered more than a million subjects...
...Crimson goes into today's match with only a single loss to Navy marring an otherwise perfect season, and the same holds true for Yale. Both teams fell easy prey to the unorthodox playing conditions which prevail on the Navy courts, and actually the winner of today's match will be regarded unofficially as the best team in the country by most squash observers...
...swam blindly in circles. Guinea fowl, who are inept flyers, paddled around vainly like ineffectual ducks. Civet cats, porcupines, ant bears, rabbits, wart hogs, lizards, boomslangs, and many bushbucks of many types crowded together on bald hilltops. During the day the equatorial sun beat down mercilessly, and birds of prey swooped in for unprecedented feasts. There are few baby monkeys or baboons-most have been eaten, some by their own species. The desperate monkeys gnaw the bark of their tree roosts and even attack the poisonous black mamba snake, from which they ordinarily flee in terror...
Watson provides a double advantage to the Crimson, for it also helps its position style of hockey. Smaller and colder than the Eagles' McHugh Forum, it will reduce the advantage of B.C.'s speedsters, Ron Walsh, Owen Hughes and Tommy Martin. Instead of falling prey to Martin's long sleeper-play passes up the middle to a wing at the offensive blue line, the varsity can tighten things up by playing "position...
...Africa since France's territories voted on the De Gaulle constitution, the federation was an answer to the fear of West African leaders such as Senegal's Leopold Senghor that the newly autonomous states within the French Community might become "Balkanized" and one by one fall prey to the ambitious new rulers of Guinea and Ghana...