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Ask Dr. Universe cats
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Why do cats rub their cheeks on stuff? – Lara, 10, New York

Dear Lara,

Sometimes I get an overwhelming urge to rub my face on things I love—like my microscope. Other times I’m so happy to see my tortoiseshell roommate that we bump our heads together.

I talked about why I do that with my friend Dr. Jessica Bell. She’s a veterinarian at Washington State University.

She told me that cats rub their cheeks on things when they’re happy or want to say that thing belongs to them.

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Why do cats purr? – Kaylee, 11, Kentucky

Dear Kaylee,

I purr all. the. time. I purr when I get a good question like yours. I purr when I finish answering a question. I even purr when I’m struggling to find an answer.

Luckily, Dr. Sarah Guess says that’s normal. She’s a veterinarian at Washington State University. She told me that cats purr when they’re content and when they’re stressed out. It can be a little confusing for humans.

Scientists have two ideas about why cats purr. It could have come from the way mother cats care for kittens. Or it could keep their bones and tissues healthy.

But experts don’t agree on the answer yet.

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Dr. Universe: Why do dogs and cats spin around before they sit down? – Antonio, 10, Richmond, Va.

Dear Antonio, That’s a great observation about cats and dogs. Even I wasn’t sure why cats spin around before they sit down, so I took your question to my friend Dr. Jessica Bell. She is a veterinarian at the Washington State University Veterinary Teaching Hospital and has seen quite a few cats and dogs walk in a little circle before they sit down. “It’s a common thing we observe as veterinarians, but we can't talk to cats and dogs and ask them ‘why,’” she said. “From a behavioral standpoint, it probably stems back to their wild instinct.” Read More ...

Dear Dr. Universe: Do you know how human and animal interactions help our mind grow? Does it help us? Does it do nothing? This has fascinated me for a very long time. - Gabby G., 11, Berlin, VT

Dear Gabby,

Our brains are pretty busy. They are constantly thinking, feeling, and sensing our world. One thing that can help some people relax is spending time with an animal friend. You might play fetch with a dog, sit with a cat, brush a horse, or even watch a goldfish zip around its bowl.

People who spend a lot of time with animals might tell you that something special seems to be going on here. But scientists are looking for evidence and want to find out for certain just what is going on. They want to know … » More …

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