The poop: Why dogs roll around in dung, carrion and other stinky stuff
The explanation for our dogs rolling in stinky stuff that makes the most evolutionary and adaptive sense is that this ritual is an attempt to disguise the dog’s own scent, a leftover behavior from when our domestic dogs were still wild and hunted for a living.
Your dog’s nose knows: That amazing canine computer
Your dog’s nose is thousands of times more sensitive than yours and as important to understanding the world as vision is to you.