Originally Posted by greenmagick
Not at all true.
Dogs are in fact carnivores. They however can and do survive (not thrive) on other food sources besides meat. Dogs are domesticated so their behavior is not exact to wolves anymore, but their nutritional needs and digestion is. Look at their teeth...that will tell you all you need to know.
They are not strict carnivores. A cat will never ingest any plant material at all short of chewing a blade of grass or catnip.
Wolves actually eat wildberries when they are around, although as my link points out it is a small portion of their diet.http://www.wolfcountry.net/information/WolfPrey.html
So my apologies, yes they are carnivores but not strict carnivores and the feral dogs of today are very far removed from the wolf. In fact the domesticated (or formerly domesticated dog) is not a direct ancestor of today's wolf. They are the ancestor of an extremely close relative of the wolf. There are so many things that are different for today's dog as opposed to the wolf. Example, it is a common misconception that feral dogs form "packs" this is not the case actually. They form loose scavenging groups that shift often and have no alpha, individuals come and go. Domesticated dogs do not form a pack with their human families as much as we'd like to think so.
As far as today's dog, their diet is one of an omnivore even if a more meat based diet would be ideal for them. That is mostly out of necessity. Even plied with all the meat they could eat though, dog's would still seek out things like berries/grasses (obviously for digestion) etc to supplement in a small manner their diet.
I am sorry for making such a bold pronouncement!
As you can see though it is not all black and white, especially because while there are many similarities between today's dog and the wild wolf there are also many significant differences.