Do you mean when do dogs develop a sense of smell if you do, its about 3 months Google search about finding out how old your dog is and it will pull up a site or two on figuring out how old your dog is in which it will tell you when they start seeing smelling hearing etc. its obvious especially the smart ones.
They need it to know where to pee/poo (marking their territory they also need it to find their way aroung because dogs, if its dark they can smell to find a way around
Dogs have a strong sense of smell, plus they don't know your name. And it is probably easier for them.
They have more smell receptors than humans.
I believe some tracking dogs and hounds have the keenest sense of smell.
dogs
Dogs have a great sense of smell and ants just don't mach up.
A dogs sense of smell is so acute that it can smell a person who was in a place days after.
To me, I think that dogs have a better sense of smell. That's why policemen use dogs to track criminals.
they have lots of smell moliclues
Yes
According to scientists, they did. In fact, they were thought to have an even better sense of smell than dogs, and dogs' sense of smell if around 60 times better than a person's.
Yes, a dogs sense of smell is ten times stronger than a humans.
I can't say. All dogs have a very good sense of smell, big or small. Springer Spaniels (Small to medium sized dogs) and Bloodhounds (Large dogs) both have a good sense of smell.
It depends on how the dogs were born, or if they hurt their nose.many things could happen, but no not all dogs have a great sense of smell. Hope this helps!
cats and dogs