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Domestic

Dogs

The world's most studied non-human animal.

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About Dogs

Dogs have co-evolved with humans for roughly 15,000 years, developing an almost uncanny ability to read and respond to human emotions. They are the most studied non-human animal on Earth — and the more we learn, the more remarkable they become.

Fun Facts

  • →Dogs can detect certain cancers, low blood sugar, and seizures before they happen.
  • →A dog's nose print is as unique as a human fingerprint.
  • →Dogs dream — their sleep patterns include REM cycles similar to humans.
  • →Dogs can understand pointing gestures — a skill even chimpanzees struggle with.
  • →The head tilt may help dogs see your face more clearly and process language.

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Quick Facts

Scientific name
Canis lupus familiaris
Domestication
~15,000 years ago
Breeds
Over 340 recognized breeds
Vocabulary
Up to 250+ words (average), 1,000+ (exceptional)
Smell sensitivity
10,000–100,000x more sensitive than humans
DNA shared with wolves
99.9%