No, why would someone even ask this question if they know, Polar Bears would just eat the dogs since Polar bears are carnivores
I believe some tracking dogs and hounds have the keenest sense of smell.
Same as dogs.
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.
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.
yes just so long as they have a sense of smell
they have lots of smell moliclues