Why haven't dogs evolved to avoid eating rubbish?

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Mutts have a finely tuned sense of smell but why do they eat anything from other dog shite to human vomit outside of pubs?

Surely they'd have sussed by now that they'll do evil farts and barf all over their owner's carpet?
 


It's a good question. I get fed up of protecting ours from themselves. You'd think after trying to pick up a toad a few times they'd get the idea that it's going to be unpleasant but at least one of ours continues to do it!
 
Dogs love a good turd like. With their sense of smell it must be absolutely lifting so maybe they eat it to be rid of the smell.
 
Just from personal observation - they tend not to start eating dog eggs until they're old and going mad, so long past breeding age.

You probably get very few 14 year old wolves in the wild, with poor eyesight, eating their mates' shite. They'll have lived, bred and died well before then.
 
It is a good question. They know they are guaranteed to be fed a nice tin of pedigree chum so what is the point of eating shit on the floor?



Time to go to bed i think
 
They evolved to eat rubbish man ya f***ing knackers. They still have their scavenger instinct and will jump on a free calorie no matter how rank it is to us. The fussy eating dogs will have died out thousands of years ago.
 
Why haven't dogs evolved to avoid eating rubbish?
Why haven't humans?

Looking at the popularity of Junk food joints we obviously have, not to mention the crap thrown in Chinese and Indian recipes that you haven't a clue about.
 
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