Researchers studying how genes control animal behavior have had to deal with many uncertainties.

研究基因如何控制动物行为的研究人员不得不面对许多不确定因素。

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Police turned it over to the animal control department after they caught it.

警察抓住它后，把它交给了动物管理部门。

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Animal experiments by psychologists at the University of Pennsylvania had shown that after repeated failures, most animals conclude that a situation is hopeless and beyond their control.

宾夕法尼亚大学的心理学家进行的动物实验表明，在多次失败之后，大多数动物都会作出这样的结论：情况已无可救药，超出了它们的控制范围。

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Here he's earnestly ordinary as mild-mannered Walter Sparrow, a pet detective (well, OK, an "animal control officer") who becomes obsessed with a pseudonymous self-published novel, "The Number 23, " by Topsy Kretts.

CNN: Review: '23' is a bad number

In an editorial entitled "In the mouth of the epidemic, " Sueddeutsche says that tough measures must now be implemented, including stepped-up hygiene and control measures, culling infected herds, a ban on animal trade and imports as well as a comprehensive vaccination scheme.

CNN: Foot and mouth: crisis at the door

The most recently announced is implanted into animal brains with the long-term goal of enabling humans with paralysis to control machines with their minds.

FORBES: Ingestible, Implantable, or Intimate contact; How Will You Take Your Micro-scale Body Sensors