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  3. Allelomimetic behavior may be defined as behavior in which two or more individual animals do the same thing, with some degree of

Allelomimetic behavior may be defined as behavior in which two or more individual animals do the same thing, with some degree of

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问题     Allelomimetic behavior may be defined as behavior in which two or more individual animals do the same thing, with some degree of mutual simulation and coordination. It can only involve in species with sense organs that are well enough developed so that continuous sensory contact can be maintained. It is found primarily in vertebrate, in those species that are diurnal, and usually in those that spend much of their lives in the air, in open water or on open plains.
    In birds, allelomimetic behavior is the rule rather than the exception, though it may occasionally be limited to particular seasons of the year as it is in the redwing blackbird. Its principal function is that of providing safety from predators, partly because the flock can rely on many pairs of eyes to watch for enemies, and partly because if one bird reacts to danger, the whole flock is warned.
    Among mammals, allelomimetic behavior is very rare in rodents, which almost never move in flocks or herds. Even when they are artificially crowded together, they do not conform in their movements. On the other hand, such behavior is a major system among large hoofed mammals such as sheep.
    In the pack-hunting carnivores, allelomimetic behavior has another function that of cooperative hunting for large prey animals such as moose. Wolves also defend their dens as a group against larger predators, such as bears. Finally, allelomimetic behavior is highly developed among most primate groups, where it has the principal function of providing warning against predators, though combined defensive behavior is also seen in troops of baboons.
Which of the following is most clearly an example of allelomimetic?
选项 A、Bears hunting for carnivores.
B、Cattle fleeing from a fire.
C、Horses running at a racetrack.
D、Dogs working with police officers.
答案B
解析 allelomimetic behavior意为“遗传模仿行为”，在所给四个选择中B能够说明问题，因为牲畜受到大火的威胁时，就产生一种自我保护本能，采取保护自己的行动，逃离火源，所以B为正确答案。A．掠食肉类动物的熊。不合题意，熊是不是掠食食肉动物的动物，我们暂且不管它，但有一点是肯定的，熊不是allelomimetic之类的动物。C．在跑道上赛跑的马。马是驯服的动物，也没有allelomimetic功能。D．和警察一起工作的狗。狗是人类的忠实朋友，和警察的合作非常密切，更不会有这种功能。
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