Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
The Basenji dog is the only dog that is not able to bark.
4
Only 3% of bird species have penises.
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