A dog’s anal-sac secretions contain a mixture of chemical compounds that vary between individuals and between males and females, helping explain why dogs are so

Trending Videos • 2026-09-05 00:34 UTC • By Billy Odell Tucker-Robinson

A dog’s anal-sac secretions contain a mixture of chemical compounds that vary between individuals and between males and females, helping explain why dogs are so interested in sniffing each other’s rear ends

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