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5 Facts About Dogs and Cats Every Pet Owner Should Know

July 28, 2026
Dog and cat together as pets

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Anyone with a pet at home knows they have their own personality — but the science behind their behavior is even more interesting. Here are 5 facts.

1. Dogs can literally “smell” human emotions

Studies show dogs can detect changes in chemical compounds released by the human body linked to stress and fear — part of the reason they seem to “sense” when we’re anxious.

2. Cats spend most of their lives sleeping

An adult cat can sleep between 12 and 16 hours a day on average — a behavior inherited from wild ancestors who needed to conserve energy for hunting.

3. A cat’s purr may serve a purpose beyond “being happy”

Research suggests the frequency of purring may be linked to self-healing processes and stress reduction, and has even been recorded during moments of pain or anxiety, not just contentment.

4. Dogs can learn hundreds of words

Some dogs, especially from more trainable breeds, have demonstrated the ability to recognize hundreds of different words and commands in controlled studies — far more than most people would guess.

5. Cats have a “third eye” (technically)

The nictitating membrane, or “third eyelid,” is an extra layer of eye protection most cats have, usually not visible unless the animal is sick or drowsy.


Ready to give your pet some extra stimulation?

Interactive Cat Toy Ball, Smart Moving Pet Toy — automatic movement that triggers your pet’s natural hunting instinct.

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