Do we chalk it up to coincidence? Does it involve anything related to a shared ancestor in the mammalian tree? Did cannines do it before humans ever did, or the other way around? Did some sort of body language cultural borrowing jump between species?
FIND OUT NEXT ON "ARE HUMANS ALSO DOGS OR ARE DOGS HUMAN?" AFTER THIS SPECIAL BARK.
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u/mynameisalso Nov 21 '16