While there are many advantages of having a pet, keeping one in the dorms can be problematic because some students may be allergic to pets.

虽然养宠物有许多好处，在宿舍养宠物却可能会有问题，因为有些学生可能对宠物过敏。

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A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits.

去年秋天的一项研究表明，养一只宠物狗不仅能振奋你的精神状态，还可能影响你的饮食习惯。

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In many cases, having a pet prepares a young couple for the responsibilities of parenthood.

很多时候，拥有一只宠物能帮助年轻夫妻做为人父母责任的准备。

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Her research team at Henry Ford Hospital was the first to show that having a pet in the house during your child's first year of life may protect him or her from developing allergies -- a finding that's since been duplicated in other studies.

CNN: Where do allergies come from?

Unfortunately, I have dealt with a pet having cancer.

FORBES: When A Pet Has Cancer

Implantable sensors exist for a number of applications, having been used in animals for pet identification for many years.

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